Knight-Swift Transportation Holdings Inc. 10-K

ITEM 1. BUSINESS Certain acronyms and terms used throughout this Annual Report are specific to our company, commonly used in our industry, or are otherwise frequently used throughout our document. Definitions for these acronyms and terms are provided in the "Glossary of Terms," available in the front of this document. Company Overview Knight-Swift Transportation Holdings Inc. is one of North America's largest and most diversified freight transportation companies, providing multiple full truckload, LTL, intermodal, and other complementary services. Our objective is to operate our business with industry-leading margins, continued organic growth and growth through acquisitions while providing safe, high-quality, cost-effective solutions for our customers. Knight-Swift uses a nationwide network of business units and terminals in the US and Mexico to serve customers throughout North America. In addition to operating one of the country's largest truckload fleets, Knight-Swift also contracts with third-party equipment providers to provide a broad range of transportation services to our customers while creating quality driving jobs for our driving associates and successful business opportunities for independent contractors. During 2023, we covered 1.6 billion loaded miles for shippers throughout North America, contributing to consolidated total revenue of $7.1 billion and consolidated operating income of $0.3 billion. During 2023, the Truckload segment operated an average of 20,948 tractors (comprised of 18,821 company tractors and 2,127 independent contractor tractors) and 87,865 trailers. Our LTL segment operated an average of 3,201 tractors and 8,482 trailers. Additionally, the Intermodal segment operated an average of 639 tractors and 12,730 intermodal containers. Our four reportable segments are Truckload, LTL, Logistics, and Intermodal. We have historically grown through a combination of organic growth, and through mergers and acquisitions (discussed below). Mergers and acquisitions have enhanced our business and service offerings with additional terminals, driving associates, revenue equipment, and capacity. Our multiple service offerings, capabilities, and transportation modes enable us to transport, or arrange transportation for, general commodities for our diversified customer base throughout the US and Mexico using our equipment, information technology, and qualified driving associates and non-driver employees. We are committed to providing our customers with a wide range of full truckload, LTL, logistics, and intermodal services and continuing to invest considerable resources toward developing a range of solutions for our customers across multiple service offerings and transportation modes. Our overall objective is to provide full truckload, LTL, logistics, and intermodal services that, when combined, lead the industry in margin and growth, while providing efficient and cost-effective solutions for our customers. Business Combinations and Investments We became Knight-Swift Transportation Holdings Inc. on September 8, 2017 through the 2017 Merger transaction. Since 1966, we have continuously expanded our nationwide network and our service offerings through organic growth, as well as through the acquisition of twenty-four companies. See Note 1 and Note 4 in Part II, Item 8 in this Annual Report, for more information regarding the 2017 Merger and our recent acquisitions. See Note 6 in Part II, Item 8 in this Annual Report, regarding our partnership agreements with Transportation Resource Partners and our other equity investments in transportation-related companies. 6 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Industry and Competition The trucking industry has two primary types of motor carriers: full truckload and LTL. Full truckload carriers represent the largest part of the transportation supply chain for most retail and manufactured goods in North America and typically transport a full trailer (or container) of freight for a single customer from origin to destination without intermediate sorting and handling. By contrast, LTL carriers typically transport multiple shipments from multiple customers in the same trailer (or container). LTL shipments are then sent through a network of service centers where they may be conveyed to other trailers with nearby destinations. Generally, the full truckload industry is compensated based on miles, whereas the LTL industry is compensated based on freight density and length of haul. Overall, the US transportation and logistics industry is large, fragmented, and highly competitive. We compete with thousands of full truckload carriers, most of whom operate significantly smaller fleets than we do, as well as a number of national, regional, and inter-regional LTL carriers. Our trucking segments compete with other motor carriers for the services of driving associates, independent contractors, and management and other employees. To a lesser extent, our intermodal and logistics businesses compete with railroads, LTL carriers, logistics providers, and other transportation companies. Our logistics businesses compete with other logistics companies for the services of third-party capacity providers and management employees. Our industry has recently encountered the following major economic cycles: Period Economic Cycle 2017 — 2019 strong cycle, driven by a record pricing climate through 2018. The industry experienced increased demand through 2018 for transportation services, including contract and non-contract market demand, partially due to a strong retail season. Capacity became tighter in the second half of 2017 and throughout 2018, due to increasing government regulation, the driver shortage, and severe storms interrupting business, among other factors. Capacity increased in the second half of 2018 leading to an oversupply during 2019, lower spot market rates, and downward pressure on contract rates. 2020 — 2021 the COVID-19 pandemic led to a new source of volatility throughout the global market in 2020. Economic activities were significantly curtailed across the nation at the onset of 2020, but began to resume in the second half of the year. Accordingly, demand in the freight market was weak in the beginning of the year and gradually strengthened in the second half of the year. The 2020 freight environment was disrupted, with unpredictable shipping volumes, shifts in pricing, and continued challenges in driver sourcing throughout the year. The COVID-19 pandemic continued to be a source of volatility throughout the global market in 2021 creating supply chain disruptions, increased demand for many products, tight transportation capacity and congestion at ocean ports and rail terminals. 2022 — 2023 some momentum from 2021 continued into the first quarter of 2022, but the remainder of 2022 and 2023 was characterized by uncertainty in the broader economy based on continuing responses to the COVID-19 pandemic abroad, conflicts overseas, waning consumer confidence, and significant inflationary pressures on equipment, fuel, maintenance, labor, and other cost items. Overall consumer demand moderated and shippers worked through inventory overhangs as we experienced ongoing congestion at ports and labor challenges in the rail industry. Capacity, particularly smaller carriers, exited the market, primarily due to diminished non-contract opportunities and meaningfully higher operating costs, leading to a declining used equipment market and a volatile insurance market. These factors culminated in muted peak seasons with fewer spot and project opportunities. The principal means of competition in our industry are customer service and relationships, capacity, and price. In times of strong freight demand, customer service and capacity become increasingly important, and in times of weak freight demand, pricing becomes increasingly important. Most trucking contracts (other than dedicated contracts) do not guarantee truck availability or shipment volumes. Pricing is influenced by supply and demand. The trucking industry faces the following primary challenges, which we believe we are well-positioned to address, as discussed under "Our Competitive Strengths" and "Our Mission and Company Strategy," below: • tightening industry capacity; • cumulative impacts of regulatory initiatives, such as ELDs, hours-of-service limitations for drivers, and others; • uncertainty in the economic environment, including inflation, rising interest rates, and changing supply chain and consumer spending patterns; • driver shortages; • increased insurance costs as significant verdicts and settlement amounts for accident claims impact the industry; • significant and rapid fluctuations in fuel prices and availability, including in connection with the conflicts in Ukraine and the Middle East; and 7 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. • increased prices for and constrained availability of new revenue equipment, design changes of new engines, advancements in technology of revenue equipment, and volatility in the used equipment sales market and insurance market. Our Competitive Strengths As a provider of multiple transportation solutions, including one of North America's largest truckload fleets, we believe that our principal competitive strengths are our regional presence, customer service (including our ability to provide multiple transportation solutions and configuration of equipment that satisfies customers' needs), operating efficiency, cost control, and technological enhancements in our revenue equipment and supporting back-office functions, and our diverse offerings that allow us to offer multiple transportation services. Regional Truckload and LTL Presence We believe that regional truckload operations, which expanded with the 2017 Merger and our recent acquisitions of U.S. Xpress, and other companies, combined with our entrance into the LTL industry through our acquisitions of ACT and MME, offer several advantages, including: • obtaining greater freight volumes, • achieving higher revenue per mile by focusing on high-density freight lanes to minimize non-revenue miles, • enhancing our ability to recruit and train qualified driving associates, • enhancing safety and driving associate development and retention, • enhancing our ability to provide a high level of service and consistent capacity to our customers, • enhancing accountability for performance and growth, • furthering our full truckload capabilities to provide various shipping solutions to our customers, • expanding into the LTL space, • furthering our logistics capabilities to contract with more third-party capacity providers, and • extending our transportation infrastructure, knowledge and scale to strengthen our relationships with third party providers. Operating Efficiency and Cost Control We expect to increase operational efficiencies through the adoption of best practices and capabilities across our brands, as well as the overall size of our company. We operate modern tractors and trailers in order to obtain operating efficiencies and attract and retain driving associates. We believe a generally compatible fleet of tractors and trailers simplifies our maintenance procedures and reduces parts, supplies, and maintenance costs. We regulate vehicle speed, which we believe will maximize fuel efficiency, reduce wear and tear, and enhance safety. We continue to update our fleet with more fuel-efficient and emission compliant engines, install aerodynamic devices on our tractors, and equip our trailers with trailer blades, which have led to meaningful improvements in fuel efficiency. We continue to invest capital in new equipment in our Truckload and LTL businesses to take advantage of improvements in tractor cab aerodynamic drag, engine efficiency, and developing fuel saving technologies, including continuing our investment in installing Start-Stop idle reduction technology in substantially all of our tractors to reduce emissions. Our logistics and intermodal businesses focus on effectively optimizing and meeting the transportation and logistics requirements of our customers and providing customers with various sources and modes of transportation capacity across our nationwide service network. We invest in technology that enhances our ability to optimize our freight opportunities while maintaining a low cost per transaction. Customer Service We strive to provide superior, on-time service at a meaningful value to our customers and seek to establish ourselves as a preferred transportation solutions provider for our customers. We provide full truckload and LTL capacity for customers in high-density lanes, where we can provide a high level of service, as well as flexible and customized logistics services on a nationwide basis. Our full truckload and LTL services together include dry van, refrigerated, and drayage, dedicated, expedited, and cross-border truckload lanes, customized according to customer needs. Our logistics and intermodal services include brokerage, intermodal, and certain logistics, freight management, and non-trucking services, which provide various shipping alternatives and transportation modes for customers by leveraging our extensive trailer fleet, enabling us to provide "power only" services that offer our customers additional flexibility and efficiency, and utilizing our expansive network of third-party capacity providers and rail partners. We price our full truckload, LTL, logistics, and intermodal services commensurately with the level of service our customers require and market conditions. By providing customers a high level of service, we believe we avoid competing solely based on price. Using Technology that Enhances Our Business We purchase and deploy technology that we believe will allow us to operate more safely, securely, and efficiently. Substantially all of our company-owned tractors are equipped with in-cab communication devices that enable us to communicate with our driving associates, obtain load position updates, manage our fleets, and provide our customers with freight visibility, as well as with ELDs that automatically record our driving associates' hours-of-service. The majority of our trailers are equipped with trailer-tracking technology that allows us to better manage our trailers. We have purchased and developed software for our logistics businesses that provides greater visibility of the capacity of our third-party providers and enhances our ability to provide our customers with solutions that offer a superior level of service. We have automated many of our back-office functions, and we continue to invest in technology that we expect will allow us to better serve our customers and improve overall efficiency. 8 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Diverse Service Offerings with Multiple Transportation Solutions With the addition of LTL services in 2021, we have further expanded our service capabilities while diversifying our revenue streams. We believe our diversified mix and scope of full truckload, LTL, logistics and intermodal services, combined with our value-added service offerings, allows us to provide our customers with one source to meet their shipping and logistics needs, and represents a significant advantage over most of our competitors. We continue to invest considerable resources toward developing a range of solutions for our customers across multiple service offerings and transportation modes to continue to provide efficient and cost-effective solutions for our customers. Our Mission and Company Strategy Our mission is to operate full truckload, LTL, logistics, intermodal and related businesses that are industry leading in both margin and growth, while providing cost-effective solutions for our customers. Our success depends on our ability to efficiently and effectively manage our resources in providing transportation and logistics solutions to our customers, as well as our ability to leverage efficiencies and best practices across our brands. We evaluate growth opportunities based on customer demand and supply chain trends, availability of drivers and third-party capacity providers, expected returns on invested capital, expected net cash flows, and our company-specific capabilities. Segment Operating Strategies Truckload Segment Our operating strategy for our Truckload segment is to achieve a high level of asset utilization within a highly disciplined operating system, while maintaining strict controls over our cost structure. We hope to achieve these goals by primarily operating in high-density, predictable freight lanes and attempting to develop and expand our customer base around each of our terminals by providing multiple truckload services for each customer. We believe this operating strategy allows us to take advantage of the large amount of freight transported in the markets we serve. Our terminals enable us to better serve our customers and work more closely with our driving associates. We operate a premium modern fleet that we believe appeals to driving associates and customers, reduces maintenance expenses and driving associate and equipment downtime, and enhances our fuel and other operating efficiencies. We employ technology in a cost-effective manner to assist us in controlling operating costs and enhancing revenue. Most recently, we have expanded our Truckload operations with the addition of U.S. Xpress in the third quarter of 2023. LTL Segment Our LTL segment was established in 2021 by the ACT and MME acquisitions, and we have since added 14 service centers, representing 368 doors as we seek to expand our LTL network to provide nationwide in-house coverage. Our operating strategy for our LTL segment is to provide regional direct service and serve our customers' national transportation needs by utilizing key partner carriers for coverage areas outside of our network. Significant investment is needed to establish and maintain a network of LTL service centers. The substantial fixed costs and capital expenditures required for LTL carriers make it challenging for new entrants or small operators to effectively compete with established carriers. We plan to grow the LTL segment through organic growth and acquisitions and believe a national expansion effort will provide enhanced value to our customers. Our business strategy includes the continuous evaluation of yield management from each customer's commodity mix and shipping volume in their corresponding lanes. Additionally, a key component of our strategy is our focused effort with respect to improving utilization of our people, technology, and other resources to maximize operational efficiency while ensuring our customers' freight is delivered safely and timely. Logistics Segment Our operating strategy for our Logistics segment is to match the shipping needs of our customers with the capacity provided by our network of third-party carriers and our rail providers. Our goal is to increase our market presence, both in existing operating regions and in other areas where we believe the freight environment meets our operating strategy, while seeking to achieve industry-leading operating margins and returns on investment. Intermodal Segment Our operating strategy for our Intermodal segment is to complement our regional operating model, allowing us to better serve customers in longer haul lanes, while leveraging our investments in fixed assets. We have intermodal agreements with most major North American rail carriers. 9 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Growth Strategies We believe we have the terminal network, systems capability, and management capacity to support substantial growth. We have established a geographically diverse network that we believe can support a substantial increase in freight volumes, both organically and through acquisitions. Our network and business lines afford us the ability to provide multiple transportation solutions for our customers, and we maintain the flexibility within our network to adapt to freight market conditions. We believe our unique mix of regional management, together with our consistent efforts to centralize certain business functions to achieve collective economies of scale, allow us to develop future company leaders with relevant operating and industry experience, minimize the potential diseconomies of scale that can come with growth in size, take advantage of regional knowledge concerning capacity and customer shipping needs, and manage our overall business with a high level of performance accountability. Strengthening our customer relationships We market our services to both existing and new customers who value our broad geographic coverage, suite of transportation and logistics services, and industry-leading full truckload and LTL capacity and freight lanes that complement our existing operations. We seek customers who will diversify our freight base. We market our Truckload and LTL dry van, refrigerated, drayage, brokerage, and intermodal services, including dedicated and cross-border services within those offerings, to logistics customers seeking a single-source provider of multiple services but do not currently take advantage of our full array of transportation solutions. Improving asset productivity We focus on improving the revenue generated from our tractors and trailers without compromising safety. We anticipate that we can accomplish this objective through increased miles driven and rate per mile in our Truckload businesses. In our LTL business, our primary focus is increasing density, realizing efficiencies from connecting our ACT and MME networks, and obtaining appropriate yield, measured by revenue per hundredweight. Acquiring and growing opportunistically We regularly evaluate potential opportunities for mergers, acquisitions, and other development and growth opportunities. We became Knight-Swift Transportation Holdings Inc. on September 8, 2017 through the 2017 Merger transaction. Since 1966, we have expanded our nationwide network and our service offerings through organic growth, as well as through the acquisition of twenty-four companies including our most recent U.S. Xpress Acquisition. Expanding existing Truckload terminals and LTL door count Historically, a substantial portion of our Truckload revenue growth has been generated by our expansion into new geographic regions through the opening of additional terminals. Although we continue to seek opportunities to further increase our Truckload business in this manner, our primary focus is on developing and expanding our existing terminals by strengthening our customer relationships, recruiting qualified driving associates and non-driver employees, adding new customers, and expanding the range of transportation and logistics solutions offered from these terminals. With our acquisitions of ACT and MME we have created a super-regional LTL footprint and continue to seek opportunities to expand our door count and expand network coverage. Diversifying our service offerings We are committed to providing our customers a broad and growing range of full truckload, LTL, logistics, and intermodal services and continue to invest considerable resources toward developing a range of solutions for our customers. We believe that these offerings contribute meaningfully to our results and reflect our strategy to bring complementary services to our customers to assist them with their supply chain needs. We plan to continue to leverage our nationwide footprint and expertise to add value to our customers through our diversified service offerings. Customers and Marketing Marketing Our marketing mission is to be a strategic, efficient transportation capacity partner for our customers by providing transportation and logistics solutions customizable to the unique needs of our customers. We deliver these capacity solutions through our network of owned assets, independent contractors, third-party capacity providers, and rail providers. The diverse and premium services we offer provide a comprehensive approach to supply chain solutions for our customers. At December 31, 2023, we had a sales staff of approximately 200 individuals across the US and Mexico, who work closely with management to establish and expand accounts. Our sales and marketing leaders are members of our senior management team, who are assisted by other sales professionals in each segment. Our sales team emphasizes our industry-leading service, environmental leadership, and ability to accommodate a variety of customer needs, while providing consistent capacity and financial strength and stability. Customers Our customers are typically large corporations in the retail (including discount and online retail), food and beverage, consumer products, paper products, transportation and logistics, housing and building, automotive, and manufacturing industries. Many of our customers have extensive operations, geographically distributed locations, and diverse shipping needs. 10 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Consistent with industry practice, our typical customer contracts (other than dedicated contracts) do not guarantee shipment volumes by our customers or truck availability by us. This affords us and our customers some flexibility to negotiate rates in response to changes in freight demand and industry-wide truck capacity. Our dedicated services within the Truckload and LTL segments assign particular driving associates and revenue equipment to prescribed routes, pursuant to multi-year agreements. This dedicated service provides individual customers with a guaranteed source of capacity and allows our driving associates to have more predictable schedules and routes. Under our dedicated transportation services, we provide driving associates, equipment, maintenance, and, in some instances, transportation management services that supplement the customer's in-house transportation department. A majority of our terminals are linked to our corporate information technology systems at our headquarters. The capabilities of this system and its software enhance our operating efficiency by providing cost-effective access to detailed information concerning equipment location and availability, shipment tracking, on-time delivery status, and other specific customer requirements. The system also enables us to respond promptly and accurately to customer requests and assists us in geographically matching available equipment with customer loads. Additionally, our customers can track shipments and obtain copies of shipping documents via our website. We also provide electronic data interchange services to customers desiring these services. We believe our fleet capacity, terminal network, customer service and breadth of services offer a competitive advantage to major shippers, particularly in times of rising freight volumes when shippers must quickly access capacity across multiple facilities and regions. We strive to maintain a diversified customer base. Services provided to our largest customer generated 11.2% and 13.1% of total revenue in 2023 and 2022, respectively. Revenue generated by our largest customer is reported in each of our reportable operating segments. No other customer accounted for 10% or more of total revenue in 2023 or 2022. Our top 25 customers drive a substantial portion of our total revenue, as follows: • In 2023, our top 25, top 10, and top 5 customers accounted for 45.3%, 31.5%, and 22.7% of our total revenue, respectively. • In 2022, our top 25, top 10, and top 5 customers accounted for 48.5%, 36.1%, and 26.8% of our total revenue, respectively. Revenue Equipment We operate a modern fleet of company tractors intended to help attract and retain driving associates, promote safe operations, and reduce maintenance and repair costs. In 2023, we obtained our revenue equipment through a combination of cash purchases and finance leases. We typically obtain tractors and trailers manufactured to our specifications in order to meet a wide variety of customer needs. Growth of our tractor and trailer fleet is determined by market conditions and our experience and expectations regarding equipment utilization. In acquiring revenue equipment, we consider a number of factors, including economy, price, rate, economic environment, technology, warranty terms, manufacturer support, driving associate comfort, and resale value. We maintain strong relationships with our equipment vendors and have the financial flexibility to react as market conditions dictate. Our current approach is to replace our tractors between four and nine years after purchase and to replace our trailers every seven or more years. Changes in the current market for used tractors and trailers, regulatory changes, and difficult market and supply chain conditions faced by tractor and trailer manufacturers may result in price increases that may affect the period of time for which we operate our equipment. Our newer equipment has enhanced features, which we believe tends to lower the overall life cycle costs by reducing safety-related expenses, lowering repair and maintenance expenses, improving fuel economy, and improving driving associate satisfaction. In 2024 and beyond, we will continue to monitor the appropriateness of this relatively short tractor trade-in cycle against the lower capital expenditure and financing costs of a longer tractor trade-in cycle, based on current and future business needs. 11 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Human Capital Employees The strength of our company is our people, working together with common goals. There were approximately 34,300 full-time employees in our total headcount of approximately 34,800 employees as of December 31, 2023, which was comprised of: Company driving associates (including driver trainees) 25,100 Technicians and other equipment maintenance personnel 1,300 Corporate and terminal leadership and support personnel 8,400 Total 34,800 As of December 31, 2023, we had approximately 1,500 Trans-Mex driving associates in Mexico that were represented by a union. Company Driving Associates We recognize that the recruitment, training, and retention of a professional driving associate workforce, which is one of our most valuable assets, is essential to our continued growth and meeting the service requirements of our customers. In order to attract and retain safe driving associates who are committed to the highest levels of customer service and safety, we focus our operations for driving associates around a collaborative and supportive team environment. To help retain driving associates we provide late model and comfortable equipment, direct communication with management, competitive wages and benefits, and other incentives designed to encourage driving associate safety, retention, and long-term employment. Some examples of these incentive programs include our Million Miler, military apprenticeship, and Drive for a Degree programs. To help recruit drivers, we have established various driving academies across the US. Our academies are strategically located in areas where external driver-training organizations were lacking. In other areas of the US, we have contracted with driver training schools, which are managed by third parties. There are certain minimum qualifications for candidates to be accepted into the academy, including passing the DOT physical examination and drug/alcohol screening, which includes hair follicle testing, a qualification standard more stringent than required by the DOT. Terminal Staff Most of our large terminals are staffed with terminal leaders, fleet leaders, driver leaders, planners, safety coordinators, shop leaders, technicians, and customer service representatives. Our terminal leaders work with driver leaders, customer service representatives, and other operations personnel to coordinate the needs of both our customers and our driving associates. Terminal leaders are also responsible for serving existing customers in their areas. Fleet leaders supervise driver leaders, who are responsible for the general operation of our trucks and their driving associates, focusing on driving associate retention, productivity per truck, fuel consumption, fuel efficiency (with respect to driver-controllable idle time), safety, and scheduled maintenance. Customer service representatives are assigned specific customers to ensure specialized, high-quality service, and frequent customer contact. Diversity, Equity, and Inclusion Diversity, equity, and inclusion are pillars supporting our innovative culture. We are committed to fostering a diverse workforce and an inclusive environment, which we believe allows us to leverage the effects of diversity to achieve a competitive business advantage. These efforts are evidenced in our hiring practices and employee training programs. Additionally, our diversity and inclusion networks demonstrate that when diverse voices and perspectives are heard, unique, powerful, and creative solutions are the result. It is with this commitment in mind that we build upon our Employee Resource Groups ("ERG"s) now and in the immediate future. Sponsored and supported by leadership, we have ERGs representing six unique employee cultures and their allies as of December 31, 2023 and we continue to monitor the need for additional resource groups. These groups are integral to ensuring that different voices and perspectives contribute to our strategy for long-term profitable growth. Succession Planning and Talent Management We regularly review talent development and succession plans to identify and develop a pipeline of talent to maintain business operations. We understand the potential costs and risks of bringing in an outside executive officer in today’s environment, and that businesses are often, but not always, more successful in promoting internal 12 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. candidates. Accordingly, the Board makes an effort to identify potential successors for those positions long in advance of any potential positional vacancies, perform skills gap analyses for those internal candidates, and provide training and exposure on those gap areas to those candidates in order to develop better potential successors. The Board is primarily responsible for succession planning for the CEO, but also participates in succession planning discussions for other executive officer positions. We believe that our culture, compensation structure, long-term equity program, and robust training and development program provide motivation for talented leaders to remain with the Company. Independent Contractors In addition to our employed driving associates, we enter into contractor agreements with third parties who own and operate tractors (or hire their own driving associates to operate the tractors) that service our customers. We pay these independent contractors for their services, based on a contracted rate per mile. By operating safely and productively, independent contractors can improve their own profitability and ours. Independent contractors are responsible for most costs incurred for owning and operating their tractors. In 2023, independent contractors comprised 8.8% of our total fleet, as measured by average tractor count. Safety and Insurance Safety We are committed to safe and secure operations. We conduct an intensive driver qualification process, including defensive driving training. We require prospective drivers to meet higher qualification standards than those required by the DOT, including extensive background checks and hair follicle drug testing. We regularly communicate with drivers to promote safety and instill safe work habits through effective use of various media and safety review sessions. We dedicate personnel and resources to ensure safe operation and regulatory compliance. We employ technology to assist us in managing risks associated with our business. We have event recorders in substantially all of our tractors, which are used daily by drivers and operations leaders to provide feedback and coaching in regard to driving behaviors. In addition, we have an innovative recognition program for driver safety performance and emphasize safety through our equipment specifications and maintenance programs. Our Corporate Directors of Safety review all accidents and report weekly to leadership. Insurance The primary claims arising in our business consist of auto liability, including personal injury, property damage, physical damage, and cargo loss. We self-insure for a significant portion of our claims exposure and related expenses. We also maintain insurance that covers our directors and officers for losses and expenses arising out of claims, based on acts or omissions in their capacities as directors or officers. While under dispatch and our operating authority, the independent contractors we contract with are covered by our liability coverage and self-insurance retention limits. However, each is responsible for physical damage to his or her own equipment, occupational accident coverage, and liability exposure while the truck is used for non-company purposes. Additionally, fleet operators are responsible for any applicable workers' compensation requirements for their employees. We insure certain casualty risks through our wholly-owned captive insurance subsidiaries, Mohave and Red Rock. Mohave and Red Rock provide reinsurance associated with a share of our automobile liability risk. In addition to insuring a proportionate share of our corporate casualty risk, Mohave provides reinsurance to third-party insurance companies who provide insurance coverage for affiliated carriers and independent contractors. Please refer to Note 12 in Part II, Item 8 of this Annual Report for more information about our insurance policies and self-insurance retention limits. Fuel We actively manage our fuel purchasing network in an effort to maintain adequate fuel supplies and reduce our Truckload and LTL fuel costs. Additionally, we utilize a fuel surcharge program to pass a majority of increases in fuel costs to our customers. In 2023, we purchased 18.4% of our fuel in bulk at our locations across the US and Mexico. We purchased substantially all of the remainder through a network of retail truck stops with which we have negotiated volume purchasing discounts. The volumes we purchase at terminals and through the fuel network vary based on procurement costs and other factors. We seek to reduce our fuel costs by routing our driving associates to 13 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. truck stops when fuel prices at such stops are more affordable than the bulk rate paid for fuel at our terminals. We primarily store fuel in above-ground storage tanks at most of our other bulk fueling terminals. We believe that we are sufficiently in compliance with applicable environmental laws and regulations relating to the storage and dispensing of fuel. Seasonality See Note 1 in Part II, Item 8 in this Annual Report, regarding the impact of seasonality on our operations. Environmental Regulation General We have bulk fuel storage and fuel islands at many of our terminals, as well as vehicle maintenance, repair, and washing operations at some of our facilities, which exposes us to certain environmental risks. Soil and groundwater contamination have occurred at some of our facilities in prior years, for which we have been responsible for remediating the environmental contamination. Also, a small percentage of our total shipments contain hazardous materials, which are generally rated as low to medium-risk, and subject us to a wide array of regulation. In the past, we have been responsible for the costs of clean-up of cargo and diesel fuel spills caused by traffic accidents or other events. We have instituted programs to monitor and mitigate environmental risks and maintain compliance with applicable environmental laws governing the hauling, handling, and disposal of hazardous materials, fuel spillage or seepage, emissions from our vehicles and facilities, engine-idling, discharge and retention of storm water, and other environmental matters. As part of our safety and risk management program, we periodically perform internal environmental reviews. We are a Charter Partner in the EPA's SmartWay Transport Partnership, a voluntary program promoting energy efficiency and air quality. We believe that our operations are in material compliance with current laws and regulations and do not know of any existing environmental condition that would reasonably be expected to have a material adverse effect on our business or operating results. If we are held responsible for the cleanup of any environmental incidents or conditions caused by our operations or business, or if we are found to be in violation of applicable laws or regulations, we could be subject to clean-up costs and other liabilities, including substantial fines, penalties and/or civil and criminal liability, any of which could have a material, adverse effect on our business and results of operations. We have paid penalties for spills and violations in the past; however, they have not been material to our financial results or position. Greenhouse Gas ("GHG") Emissions and Fuel Efficiency Standards California ARB — In 2008 , the State of California's Air Resources Board ("ARB") approved the Heavy-Duty Vehicle GHG Emission Reduction Regulation in efforts to reduce GHG emissions from certain long-haul tractor-trailers that operate in California by requiring them to utilize technologies that improve fuel efficiency (regardless of where the vehicle is registered). The regulation, which became effective in 2010, required owners of long-haul tractors and 53-foot trailers to be EPA SmartWay certified or replace or retrofit their vehicles with aerodynamic technologies and low-rolling resistance tires. The regulation also contained certain emissions and registration standards for refrigerated trailers. In February 2018, California's ARB approved California Phase 2 Standards that generally align with the federal Phase 2 Standards ( the "Phase 2 Standards," discussed in further detail below), with some minor additional requirements, and which would stay in place even if the Phase 2 Standards are affected. In February 2019, the California Phase 2 Standards became final. 14 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. In June 2020, ARB passed the Advanced Clean Trucks ("ACT") regulation, requiring original equipment manufacturers to begin shifting towards greater production and sales of zero-emission heavy-duty tractors starting in 2024. Under ACT, by 2045, every new tractor sold in California will need to be zero-emission. The most aggressive ACT standards apply to Class 4-8 trucks, which range from 14,000-33,000 pounds, by requiring that 9% of such trucks be zero emission beginning in 2024 and increasing to 75% by 2035. Similar (albeit lower) increasing zero emission requirements apply to Class 2b-3 trucks, and Class 7-8 trucks between 2024 and 2035. Among other impacts, ACT could affect the cost and/or supply of traditional diesel tractors. It has also led to similar legislation in other states, with several already adopting ACT, and a number of other states either considering adoption of ACT or affirmatively conducting a preliminary rulemaking process to that effect. In 2023, ARB finalized what is known as the Advanced Clean Fleets ("ACF") regulation, also aimed at transitioning to zero emission vehicles which became effective in January 2024. ACF is a purchase requirement for medium and heavy-duty fleets to adopt an increasing percentage of zero emission trucks, designed to complement the sell-side obligations of ACT. The ACF regulations apply to three categories of fleet operators: (1) high priority fleets who meet certain thresholds of trucks or revenue (including fleets that operate 50 or more trucks, or generate $50 million or more in gross annual revenue), (2) drayage fleets, and (3) state and local government public fleets. For high priority fleets who meet the applicable thresholds, compliance can be achieved by either (a) ensuring that all new vehicles added to the fleet be zero emission, and commencing in 2025, removing older vehicles once their statutory useful life is reached, or (b) meeting certain fleet composition requirements (e.g., percentage of zero emission vehicles in the fleet) by certain dates, with the percentage of zero emission vehicles increasing over time, and resulting in 100% zero emission fleets by 2042 (or earlier for certain classes of vehicles). As with ACT, adoption and implementation of ACF could materially and negatively impact our business by increasing our compliance obligations, operating costs, and related expenses. The periodic testing portion of California’s Clean Truck Check (as a part of ARB's Clean Truck program), known as Phase 3 of the Clean Truck Check, is set to begin in July 2024. Once Phase 3 commences, heavy duty vehicles will be subject to periodic emissions testing. Additionally, in October 2023, the California State Senate and State Assembly approved two bills, Senate Bill 253 ("SB 253") and Senate Bill 261 ("SB 261"), that could require thousands of companies doing business in California to disclose greenhouse gas ("GHG") emissions and climate-related financial risks, with reporting beginning in 2026. If signed into law, SB 253 would require ARB to adopt regulations before January 2025 requiring public and private companies that exceed $1 billion in annual revenue and that do business in California to begin publicly disclosing their GHG emissions, and SB 261 would require companies doing business in California and earning revenue exceeding $500 million to report on their climate-related financial risks and measures taken to mitigate such risks on or before January 2026. EPA and NHTSA — The EPA and the National Highway Traffic Safety Administration ("NHTSA") have begun taking coordinated steps in support of a new generation of clean vehicles and engines through reduced GHG emissions and improved fuel efficiency at a national level. Originally, the rule was written so that tractors and certain trailer types would be subject to the Phase 2 Standards beginning with model-years 2018 and 2021 respectively, increasing in and phasing in completely by model-year 2027. This rule would have marked the first time federal mandates would have been applied to trailers, with respect to aerodynamics and low-rolling resistance tires. The final rule was effective in December 2016, but has since been subject to challenges and delays. Additionally, implementation of the Phase 2 Standards as they relate to trailers was challenged in the US Court of Appeals for the District of Columbia. In November 2021, a panel for the US Court of Appeals for the District of Columbia ruled in favor of the association challenging the standards and vacated all portions of the Phase 2 Standards that applied to trailers. As a result, the Phase 2 Standards will only require reductions in emissions and fuel consumption for tractors. The Company’s new tractor purchases in 2023 complied with the emission and fuel consumption reductions required by the Phase 2 Standards. Even though the trailer provisions of the Phase 2 Standards have been removed, we will still need to ensure the majority of our fleet is compliant with the California Phase 2 Standards. In January 2020, the EPA announced it is seeking input on reducing emissions of nitrogen oxides and other pollutants from heavy-duty trucks. In March 2022, the EPA issued a proposed rule that included nitrogen oxide emission standards which are more stringent than the Phase 2 Standards for certain heavy-duty motor vehicles. In December 2022, the EPA adopted a final rule that reflected a compromise of the options previously proposed, with new emissions standards of nitrogen oxides for heavy-duty motor vehicles beginning with model year 2027 being 15 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. more than 80% stronger than current emission standards, with the intent to reduce heavy-duty emissions by almost 50% from today’s levels by 2045. The EPA has indicated that the December 2022 rule is the first part of a three part plan focusing on greenhouse gas emissions, which is commonly referred to as the "Cleaner Trucks Initiative," or the "Clean Trucks Plan." In April 2023, the EPA released the second and third parts to the Clean Trucks Plan, including a proposed rule relating to GHG standards for heavy-duty vehicles, known as "Phase 3," to the EPA's GHG program. A final rule with respect to these regulations is expected by the end of 2024. Upon finalization, any such regulation could increase our equipment and compliance costs, which could materially adversely affect our financial condition. Complying with these and any future GHG regulations enacted by California’s ARB, the EPA, the NHTSA and/or any other state or federal governing body has increased and will likely continue to increase the cost of our new tractors, may increase the cost of new trailers, may require us to retrofit certain of our trailers, may increase our maintenance costs, and could impair equipment productivity and increase our operating costs, particularly if such costs are not offset by potential fuel savings. These adverse effects, combined with the uncertainty as to the reliability of the newly designed diesel engines and the residual values of our equipment, could materially increase our costs or otherwise adversely affect our business or operations. We cannot predict, however, the extent to which our operations and productivity will be impacted. We will continue monitoring our compliance with federal and state GHG regulations. Climate-change Proposals Federal and state lawmakers are considering a variety of other climate-change proposals related to carbon emissions and GHG emissions. The proposals could potentially limit carbon emissions within certain states and municipalities, which continue to restrict the location and amount of time that diesel-powered tractors (like ours) may idle. These restrictions could force us to purchase on-board power units that do not require the engine to idle or to alter our driving associates' behavior, which could result in a decrease in productivity, or increase in driving associate turnover. Industry Regulation Our operations are regulated and licensed by various federal, state, and local government agencies in North America, including the DOT, the FMCSA, and the US Department of Homeland Security, among others. Our company, as well as our driving associates and independent contractors, must comply with enacted governmental regulations regarding safety, equipment, and operating methods. Examples include regulation of equipment weight, equipment dimensions, driver hours-of-service, driver eligibility requirements, including drug and alcohol testing, on-board reporting of operations, and ergonomics. The following discussion presents recently enacted federal, state, and local regulations that could have an impact on our operations. Moving Ahead for Progress in the 21st Century Bill Commercial Driver's License Drug and Alcohol Clearinghouse — In December 2016, the FMCSA amended the Federal Motor Carrier Safety Regulations to establish requirements of the Commercial Driver's License Drug and Alcohol Clearinghouse, a database under its administration containing information about violations of the FMCSA's drug and alcohol testing program for holders of commercial driver's licenses. The final rule became effective in 2017, with an initial compliance date of January 2020 and certain compliance dates extended until January 2023. Currently, the Company is required to (1) report drug and alcohol violations to the Clearinghouse; (2) query the Clearinghouse regarding drug and alcohol violations for current and prospective employees prior to permitting such employees to operate a commercial motor vehicle ("CMV"); and (3) query the Clearinghouse for each currently employed driver annual. Commencing in November 2024, states will be required to query the Clearinghouse when issuing, renewing, transferring, or upgrading a commercial driver’s license and must revoke a driver’s commercial driving privileges if such driver is prohibited from driving a motor vehicle for one or more drug or alcohol violations. It is expected that the rule may exacerbate the already existing shortage of drivers. In September 2020, the Department of Health and Human Services ("DHHS") announced proposed mandatory guidelines to allow employers to drug test truck drivers and other federal workers for pre-employment and random testing using hair specimens. However, the proposal also requires a second sample using either urine or an oral fluid test if a hair test is positive, if a donor is unable to provide a sufficient amount of hair for faith-based or medical 16 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. reasons, or due to an insufficient amount or length of hair. DHHS indicated the two-test approach is intended to protect federal workers from issues that have been identified as limitations of hair testing, and related legal deficiencies identified in prior court cases. In 2022, an industry group known as the Trucking Alliance, of which the Company is a member, sought an exemption from the FMCSA that would allow positive hair specimen tests to be uploaded into the FMCSA Drug and Alcohol Clearinghouse. This request was denied by the FMCSA, however, noting they cannot act until the DHHS finalizes these guidelines. Additionally, in February 2022 the DOT issued a notice of proposed rulemaking that would include oral fluid testing as an alternative to urine testing for purposes of the DOT’s drug testing program, with a goal of improving the integrity and effectiveness of the drug testing program, along with potential cost savings to regulated parties. In May 2023, a final rule was published amending DOT’s drug testing program to include oral fluid testing, and became effective June 2023; however, implementation cannot take effect until DHHS approves at least two laboratories to conduct oral fluid testing. Currently, DHHS has not approved any laboratories. Any final rule may reduce the number of available drivers. We currently perform hair follicle testing and will continue to monitor any developments in this area to ensure compliance. Finally, federal drug regulators have announced a proposal to add fentanyl to a drug testing panel that would detect the use of such drug among safety-sensitive federal employees, which would include truck drivers if adopted by the DOT. If the proposal is accepted, DHHS expects to add fentanyl to the testing panel at some point in 2024. Entry-Level Driver Training — In December 2016, the FMCSA established new minimum training standards (the "ELDT Regulations") which unified curriculum to be followed and completed by certain individuals applying for (or upgrading) a Class A or Class B commercial driver's license, or obtaining a hazardous materials, passenger, or school bus endorsement on their commercial driver's license. Such individuals are subject to the entry-level driver training requirements and must complete a prescribed curriculum of theory and behind-the-wheel instruction prior to taking the skills test. The final rule had an initial compliance date in February 2020. However, in May 2020, the FMCSA approved an interim rule delaying implementation of the ELDT Regulations by two years, which extended the compliance date until February 2022. Now that the rule is effective, training schools and other programs (including ours) are required to implement the prescribed curriculum and register with the FMCSA's Training Provider Registry to certify that their program meets the classroom and driving standards. We are also required to comply with this rule in the course of operating our driving schools. The effects of these rules may result in a decrease in fleet production and driver availability or an increase in the time and expense required to operate or expand our driving academies and driver training programs (or both), any of which could adversely affect our business, operations or profitability. Brokerage Operations — In a November 2023 final rule, the FMCSA implemented more oversight of truck brokers, freight forwarders, and the surety bond and trust companies that back them. The final rule, which became effective in January 2024, modified regulations in five areas: (1) assets readily available, (2) immediate suspension of broker/freight forwarder operating authority, (3) surety or trust responsibilities, (4) enforcement authority, and (5) entities eligible to serve as BMC-85 trustees. Among other changes, the rule allows brokers or freight forwarders to meet regulatory requirements to have “assets readily available” by maintaining trusts that meet certain criteria, including that they can be liquidated within seven calendar days of an event that triggers a payment from the trust. The rule also stipulates that "available financial security" falls below $75,000 when there is a drawdown on the broker or freight forwarder’s surety bond or trust fund. Implementation and compliance with these changes may negatively impact our business by increasing our compliance obligations, operating costs, and related expenses. 17 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Infrastructure Investment and Jobs Act Among other things, the Infrastructure Investment and Jobs Act ("IIJA"), signed into law by President Biden in November 2021, created an apprenticeship program for drivers ages 18 to 20 years old to eventually qualify to drive commercial trucks in interstate commerce. The FMCSA announced the establishment of this apprenticeship program in January 2022 in an effort to begin to help the industry’s ongoing driver shortage. This program, known as the Safe Driver Apprenticeship Pilot Program ("SDAP"), is open to 18 to 20-year-old drivers who already hold intrastate commercial driver’s licenses and sets a strict training regimen for participating drivers and carriers to comply with. Motor carriers interested in participating must complete an application for participation and submit monthly data on an apprentice’s driver activity, safety outcomes, and additional supporting information. The SDAP is limited to 3,000 driver-apprentices at any given time, with new driver-apprentices allowed into the program to replace those that leave or age out. In May 2023, the DRIVE Safe Integrity Act of 2023 was introduced, which supports participation in the SDAP and would permit 18- to 20-year-olds to operate across state lines if data from the SDAP does not indicate such drivers are less safe than current CMV drivers. Whether this legislation will ultimately become law is uncertain. It remains unclear whether any regulatory changes will stem from the apprenticeship program. The IIJA also required that the FMCSA clarify the differences between brokers, bona fide agents, and dispatch services, and to further specify its interpretation of the definitions of "broker" and "bona fide agents." In June 2023, FMCSA issued final guidance on the definitions of “broker” and “bona fide agents,” in which the distinction between the two largely hinges upon control and whether the person or company is engaged in the allocation of traffic between motor carriers. Certain of the Company’s subsidiaries currently hold FMCSA brokerage authority, so while the impact of this guidance remains to be seen, the Company does not currently anticipate an adverse impact on its operations. Hours-of-service From time to time, the FMCSA proposes and implements changes to regulations impacting hours-of-service. Such changes can negatively impact our productivity and affect our operations and profitability by reducing the number of hours per day or week our driving associates and independent contractors may operate and/or disrupting our network. No such changes are currently proposed. In recent years, the FMCSA has made changes to the hours-of-service rules that provide greater flexibility to drivers regarding their 30-minute rest breaks, an extension of the shorthaul exemption by an additional two hours, and an extension of duty time for drivers encountering adverse weather by up to two hours. Certain industry groups have challenged these hours-of-service rules in court, and while the FMCSA's final rule has been upheld, it remains unclear if industry or other groups will bring additional challenges against the FMCSA's final rule. Any future changes to hours-of-service regulations could materially and adversely affect our operations and profitability. Safety and Fitness Ratings There are currently two methods of evaluating the safety and fitness of carriers: CSA, which evaluates and ranks fleets on certain safety-related standards by analyzing data from recent safety events and investigation results, and the DOT safety rating, which is based on an on-site investigation and affects a carrier's ability to operate in interstate commerce. Additionally, the FMCSA has proposed rules in the past that would change the methodologies used to determine carrier safety and fitness. DOT Safety Rating — The DOT safety rating is currently the only safety measurement system that has a direct impact on a carrier's ability to operate in interstate commerce. Our motor carriers currently have a satisfactory DOT safety rating, which is the best available rating under the current safety rating scale. If we were to receive a conditional or unsatisfactory DOT safety rating, it could adversely affect our business, as some of our existing customer contracts require a satisfactory DOT safety rating. CSA — In December 2010, the FMCSA introduced CSA, an enforcement and compliance model that ranks carriers on seven categories of safety-related data. The seven categories of safety-related data, currently include Unsafe Driving, Hours-of-Service Compliance, Driver Fitness, Controlled Substances/Alcohol, Vehicle Maintenance, Hazardous Materials Compliance, and Crash Indicator, (such categories known as "BASICs"). Carriers are grouped by category with other carriers that have a similar number of safety events (i.e., crashes, inspections, or violations) and carriers are ranked and assigned a rating percentile or score to prioritize them for interventions if they are above a certain threshold. 18 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Certain CSA scores were initially published and made available to the general public. However, in December 2015, as part of the Fixing America's Surface Transportation ("FAST") Act, Congress mandated that the FMCSA remove all CSA scores from public view until a more comprehensive study regarding the effectiveness of CSA improving truck safety could be completed. Although the FMCSA has since provided a report to Congress outlining the changes it may make to the CSA program, it remains unclear if, when, and to what extent any such changes will occur. For more information about proposed changes to the CSA program, please refer to the "Safety Fitness Determination" section, below. The FMCSA has been conducting a study on the causation of crashes, expanding on its previous Large Truck Crash Causation Study, known as the Crash Causal Factors Program ("CCFP"). Phase 1 of the CCFP is designed to study crashes of heavy-duty trucks, and the Phase 1 final report is expected in 2029. However, any changes that increase the likelihood of us receiving unfavorable scores could adversely affect our results of operations and profitability. In May 2020 the FMCSA announced that effective immediately it is making permanent a pilot program that will not count a crash in which a motor carrier was not at fault when calculating the carrier’s safety measurement profile, called the Crash Preventability Demonstration Program ("CPDP"). The CPDP will expand the types of eligible crashes, modify the Safety Measurement System ("SMS") to exclude crashes with not preventable determinations from the prioritization algorithm and note the not preventable determinations in the Pre-Employment Screening Program. Currently, CSA scores generally do not have a direct impact on a carrier's safety rating. However, the occurrence of unfavorable scores in one or more categories may affect driving associate recruiting and retention by causing qualified driving associates to seek employment with other carriers, cause our customers to direct their business away from us and to carriers with more favorable scores, subjecting us to an increase in compliance reviews and roadside inspections, or cause us to incur greater than expected expenses in our attempts to improve unfavorable scores, any of which could adversely affect our results of operations and profitability. Safety Fitness Determination — In January 2016, the FMCSA published a notice of proposed rulemaking regarding carrier safety fitness determination, which proposed new methodologies that would have determined when a motor carrier was not fit to operate a commercial motor vehicle. In March 2017, the FMCSA withdrew the notice of proposed rulemaking, but noted that a similar process may be initiated in the future. In February 2023, the FMCSA published a notice of proposed changes to its SMS methodology, including the BASIC categories. In August 2023, the FMCSA announced in an advanced notice of proposed rulemaking and request for comments that it was interested in developing a new methodology to determine whether a carrier is fit to operate CMVs. Additionally, the US Government Accountability Office made a suggestion in 2023 to the FMCSA to make complaint data public. Currently, it is uncertain what changes, if any, the FMCSA will make to the CSA rating system or the SMS methodology; however, any change which would result in the Company or its subsidiaries receiving less favorable scores, or an increased visibility of less favorable scores or of complaints against the Company may have an adverse effect on our operations and financial position. Moreover, in September 2023, the FMCSA announced a proposal that would allow carriers to undergo an appeal process for requests of data review, which are in relation to such requests through the agency’s DataQs system. The proposal, if adopted, may provide an opportunity for the Company to appeal in certain scenarios which could result in more favorable outcomes. Equipment Developments In May 2021, the Cullum Owings Large Truck Safe Operating Speed Act was reintroduced into the US House of Representatives and would require commercial motor vehicles with a gross weight of more than 26,000 pounds to be equipped with a speed limiter that would limit the vehicle's speed to no more than 65 miles per hour. Whether this legislation will ultimately become law is uncertain. Furthermore, in April 2022, the FMCSA issued a notice of intent announcing its intention to propose a rule during 2023 which will require certain commercial vehicles to be equipped with speed limiters; however, no final rule was proposed. It is now expected that the DOT will issue a rule sometime in 2024. While we electronically govern the speed of substantially all of our company tractors and require our independent contractors to comply with the Company's speed policy, such legislation could result in a decrease in fleet production and driver availability, either of which could adversely affect our business or operations. 19 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. In September 2022, the FMCSA issued an advance notice of proposed rulemaking that would require fleets and independent contractors to equip their trucks with unique electronic identification systems designed to streamline roadside inspections and provide transparency and accountability in day-to-day trucking operations. The petition was generally disfavored by transportation industry participants, citing, among other things, the petition’s failure to address privacy and data security risks. It remains to be seen what rules, if any, may stem from this notice. However, in February 2023 the FMCSA announced a new operational test for monitoring and enforcing driver and motor carrier safety compliance standards. In February 2023, the FMCSA issued a supplemental notice of proposed rulemaking requesting additional information on automated driving systems ("ADS") and seeking comment on regulatory approaches that would enable it to obtain relevant safety information and the current and anticipated size of the population of carriers operating ADS-equipped commercial motor vehicles. Public comment closed in March 2023, and it remains to be seen, what, if any, final rules will stem therefrom. The FMCSA, in conjunction with the NHTSA, have announced their intention to propose a rule for performance standards and maintenance requirements for automatic emergency braking on heavy trucks. In June 2023, FMCSA and NHTSA issued a joint proposed rule that would require automated emergency braking on all new heavy-duty trucks. Additionally, in April 2023, NHTSA issued an advance notice of proposed rulemaking that would require side underride guards to be installed on all new heavy-duty trucks. Public comment on the FMCSA and NHTSA joint proposed rule and the NHTSA notice of proposed rulemaking closed in 2023, and it remains to be seen, what, if any, final rules will stem therefrom. Food Safety Modernization Act of 2011 ("FSMA") In April 2016, the Food and Drug Administration ("FDA") published a final rule establishing requirements for shippers, loaders, carriers by motor vehicle and rail vehicle, and receivers engaged in the transportation of food, to use sanitary transportation practices to ensure the safety of the food they transport as part of the FSMA. This rule sets forth requirements related to among other things, equipment used to transport food, measures taken during such transportation, personnel training, and record retention. These requirements took effect for larger carriers such as us in April 2017 and are also applicable when we perform as a carrier or as a broker. We believe we have been in compliance with these requirements since that time. However, if we are found to be in violation of applicable laws or regulations related to the FSMA, or if we transport food or goods that are contaminated or are found to cause illness and/or death, we could be subject to substantial fines, lawsuits, penalties and/or criminal and civil liability, any of which could have a material adverse effect on our business, financial condition, and results of operations. As the FDA continues its efforts to modernize food safety, it is likely additional food safety regulations will take effect in the future. In July 2020, the FDA released its "New Era of Smarter Food Safety" blueprint, which creates a ten year roadmap to create a more digital, traceable and safer food system. This blueprint builds on the work done under the FSMA, and while it is still unclear what, if any, changes to the current governing framework may ultimately take effect, further regulation in this area could negatively affect our business by increasing our compliance obligations and related expenses going forward. 20 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Legislation Regarding Independent Contractors Tax and other regulatory authorities, as well as independent contractors themselves, have sought in the past to assert that independent contractors in the trucking industry are employees rather than independent contractors. Federal legislators continue to introduce legislation concerning the classification of independent contractors as employees, including legislation that proposes to increase the tax and labor penalties against employers who intentionally or unintentionally misclassify employees as independent contractors and are also found to have violated employees' overtime or wage requirements. The Protecting the Rights to Organize ("PRO") Act was passed by the US House of Representatives and received by the US Senate in March 2021, which was further sent to the Senate's Committee on Health, Education, Labor, and Pensions. In 2023, a substantially similar bill was introduced to the US House of Representatives and referred to the House Committee on Education and Workforce. These bills propose to apply the "ABC Test" for classifying workers under Federal Fair Labor Standards Act claims. In January 2024, the Department of Labor published a final rule regarding independent contractor classification, which is set to take effect on March 11, 2024. The final rule rescinded the Independent Contractor Status Under the Fair Labor Standards Act. Under the 2024 rule, workers’ relationship with a principal will be classified under six factors, including: (1) opportunity for profit and loss depending on managerial skill; (2) investments by the worker and the principal; (3) degree of permanence of the relationship; (4) nature and degree of control; (5) extent to which worker is integral to the principal’s business; and (6) skill and initiative, together with a provision for unspecified other factors, to determine if such worker should be classified as an independent contractor. Additionally, federal legislators have sought to: • abolish the current safe harbor allowing taxpayers meeting certain criteria to treat individuals as independent contractors if they are following a long-standing, recognized practice, • extend the FLSA to independent contractors, and • impose notice requirements based upon employment or independent contractor status and fines for failure to comply. Some states have adopted initiatives to increase their revenues from items such as unemployment, workers' compensation, and income taxes, and we believe a reclassification of independent contractors as employees would help states with this initiative. Federal and state taxing and other regulatory authorities and courts apply a variety of standards in their determination of independent contractor status. Recently, courts in certain states have issued decisions that could result in a greater likelihood that independent contractors would be judicially classified as employees in such states. Further, class actions and other lawsuits have been filed against us and other members of our industry seeking to reclassify independent contractors as employees for a variety of purposes, including workers' compensation and health care coverage. Our defense of such class actions and other lawsuits has not always been successful, and we have been subject to adverse judgments with respect to such matters. In addition, carriers such as us that operate or have operated lease-purchase programs have been more susceptible to lawsuits seeking to reclassify independent contractors that have engaged in such programs. If our independent contractors were determined to be our employees, we would incur additional exposure under federal and state tax, workers' compensation, unemployment benefits, labor, employment, and tort laws, which could potentially include prior periods, as well as potential liability for employee benefits and tax withholdings. We currently observe and monitor our compliance with current related and applicable laws and regulations, but we cannot predict whether future laws and regulations, judicial decisions, or settlements regarding the classification of independent contractors will adversely affect our business or operations. In September 2019, California enacted A.B. 5 ("AB5"), a new law that changed the landscape of the state’s treatment of employees and independent contractors. AB5 provides that the three-pronged "ABC Test" must be used to determine worker classification in wage-order claims. Under the ABC Test, a worker is presumed to be an employee and the burden to demonstrate their independent contractor status is on the hiring company through satisfying all three of the following criteria: • the worker is free from control and direction in the performance of services; • the worker is performing work outside the usual course of the business of the hiring company; • the worker is customarily engaged in an independently established trade, occupation, or business. 21 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. How AB5 will be enforced is still to be determined. In January 2021, the California Supreme Court ruled that the ABC Test could apply retroactively to all cases not yet final as of the date the original decision was rendered, April 30, 2018. While it was set to go into effect in January 2020, a federal judge in California issued a preliminary injunction barring the enforcement of AB5 on the trucking industry while the California Trucking Association ("CTA") went forward with its suit seeking to invalidate AB5. The Ninth Circuit Court of Appeals rejected the reasoning behind the injunction in April 2021, ruling that AB5 is not pre-empted by federal law, but granted a stay of the AB5 mandate in June 2021, preventing its application and temporarily continuing the injunction, while the CTA petitioned the US Supreme Court to review the decision. In November 2021, the US Supreme Court requested that the US solicitor general weigh in on the case. The injunction remained in place until the US Supreme Court declined to hear the matter. As a result, the injunction was lifted and retroactively placed AB5 into law as of January 2020. Litigation surrounding the matter continues, and the Ninth Circuit is currently scheduled to hear arguments on a case concerning AB5 in March 2024; however, it remains unclear whether such challenges will be successful in invalidating the law. It is also possible AB5 will spur similar legislation in states other than California, which could adversely affect our results of operations and profitability. Wage and Hour Legislation In December 2018, the FMCSA granted a petition filed by the American Trucking Associations and in doing so determined that federal law does preempt California’s wage and hour laws, and interstate truck drivers are not subject to such laws. The FMCSA’s decision has been appealed by labor groups and multiple lawsuits have been filed in federal courts seeking to overturn the decision. In January 2021, the Ninth Circuit Court of Appeals upheld the FMCSA’s determination that federal law does preempt California's meal and rest break laws, as applied to drivers of property-carrying commercial motor vehicles. Other current and future state and local wage and hour laws, including laws related to employee meal breaks and rest periods, may also vary significantly from federal law. Further, driver piece rate compensation, which is an industry standard, has been attacked as non-compliant with state minimum wage laws. Both of these issues are adversely impacting the Company and the industry as a whole, with respect to the practical application of the laws, thereby resulting in additional cost. As a result, we are subject to an uneven patchwork of wage and hour laws throughout the US. If federal legislation is not passed preempting state and local wage and hour laws, we will either need to comply with the most restrictive state and local laws across our entire fleet, or revise our management systems to comply with varying state and local laws. Either solution could result in increased compliance costs, increased driver turnover, decreased efficiency, and amplified legal exposure. In a 2023 case involving the Fair Labor Standards Act, the First Circuit Court of Appeals affirmed a decision that would require additional payment to team drivers to be paid while in their sleeper berth. It is unclear if other jurisdictions will adopt this view, or if any legislation will result from this holding. If so, this could have a material adverse effect on our business, financial condition, and results of operations. In November 2023, a bill was introduced to Congress that would eliminate an exclusion of truck drivers from receiving overtime pay. If enacted, this could have a material adverse effect on our business, financial condition, and results of operations. Other Regulation Inflation Reduction Act President Biden has indicated his intent to make a green infrastructure package a top priority for his administration. In August 2022, the Inflation Reduction Act of 2022 was signed into law by President Biden. Among other considerations, the Inflation Reduction Act contains provisions relating to energy, climate change, and tax reform. In particular, the Inflation Reduction Act shifts timing for certain tax payments, imposes an excise tax on certain corporate stock buybacks, and creates a 15% corporate alternative minimum tax, which is generally applicable to corporations that reported over $1 billion in profits in each of the three proceeding tax years. Tax changes in the Inflation Reduction Act, together with changes to any other US tax laws may have an adverse impact on our business and profitability. It is unclear what other legislative initiatives will be signed into law and what changes they may undergo. However, adoption and implementation could negatively impact our business by increasing our compliance obligations and related expenses. 22 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Infrastructure Spending In November 2022, Senate lawmakers introduced legislation that would set aside grant funds over four years to expand truck parking across the United States. Such legislation would allow for the creation of new parking areas, the expansion of existing facilities, and the approval of commercial parking at existing weigh stations, rest areas, and park-and-ride facilities. It would also allow for truck parking expansion at commercial truck stops and travel plazas. Industry groups are generally in favor of the bill, as a lack of available parking has negatively impacted the industry as a whole, including the Company and its subsidiaries. Brokerage Liability Recently, federal courts have reached different decisions on the issue of whether preemption applies to broker liability. In June 2022, the US Supreme Court declined to review a Ninth Circuit Court of Appeals decision involving a personal injury suit alleging that a freight broker had liability for an accident because it breached its duty to select a competent contractor to transport the load in question. In its petition to the US Supreme Court, the broker unsuccessfully argued that the Ninth Circuit’s decision improperly disallowed federal preemption and would expose freight brokers to a patchwork of state regulations across the United States. In April 2023, the Eleventh Circuit Court held that the Federal Aviation Administration Authorization Act ("FAAAA") expressly preempted such personal liability claims against a broker. Additionally, in July 2023, the Seventh Circuit Court of Appeals affirmed the holding of a lower court that the FAAAA's preemption provision applied and that a certain safety exception within the FAAAA did not save the plaintiff’s claim from preemption. In January 2024, the US Supreme Court declined to review the case from the Seventh Circuit Court of Appeals. It is uncertain how long the current circuit split will continue and whether the US Supreme Court will decide to review similar cases in the future. If additional circuit courts, or the US Supreme Court, adopt the Ninth Circuit view, freight brokers’ ability to rely on federal agency standards in selecting motor carriers would be called into question. It could also lead to primary (as opposed to contingent) liability being imposed upon freight brokers, and increased insurance premiums for brokerage operations generally. Although we are committed to selecting safe and secure motor carriers in carrying out our brokerage activities, if we are found to be negligent in the motor carrier selection process it could lead to significant liabilities in the event of an accident, which could have a materially adverse effect on our business and operating results. IIJA The IIJA was signed into law by President Biden in November 2021. The roughly $1.2 trillion bill contains an estimated $550 billion in new spending, which will impact transportation. In particular, it dedicates more than $100 billion for surface transportation networks and roughly $66 billion for freight and passenger rail operations. Provisions in the law specific to trucking are discussed above. It otherwise remains unclear how the IIJA will be implemented into and affect our industry in the long term. The IIJA may result in increased compliance and implementation related expenses, which could have a negative impact on our operations. SHIP IT Act In January 2023, the Safer Highways and Increased Performance for Interstate Trucking Act (the “SHIP IT Act”) was introduced into the US House of Representatives. As proposed, the SHIP IT Act would allow states to issue special permits for overweight vehicles and loads during emergencies, allow drivers to apply for Workforce Innovation and Opportunity Act grants, attempt to recruit truck drivers to the industry through targeted and temporary tax credits, streamline the CDL process in certain respects, and expand access to truck parking and rest areas for commercial drivers. It remains unclear whether the SHIP IT Act will ultimately become law, however, and what changes it may undergo prior to finalization. Truck Leasing Task Force In February 2023, the Secretary of Transportation announced the creation of the Truck Leasing Task Force ("TLTF"). The TLTF is a committee tasked with evaluating lease agreements in the industry and their effects on industry participants, including independent contractors. Any future laws or regulations stemming from the TLTF could disrupt the Company’s leasing practices and cause materially adverse effects on our operations and financial position. 23 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC. Regulatory Impacts from COVID-19 Given COVID-19’s considerable effect on our nation and the transportation industry, the FMCSA previously issued and extended various temporary measures in response to the COVID-19 pandemic. However, as additional tools, protective equipment, policies, practices, and medicines have been developed in response to COVID-19, in October 2022, the FMCSA ended the hours of service waiver previously issued with respect to certain types of shipments, such as, livestock, medical supplies, vaccines, groceries, and diesel fuel. Although to date these response measures have largely been enacted in order to assist industry participants in operating under adverse circumstances, any further responsive measures or the lapsing of temporary measures previously enacted, remain unclear and could have a negative impact on our operations. Any similar future outbreak, border restrictions, or vaccination, testing or mask mandates that are allowed to go into effect, could, among other things, (1) cause our unvaccinated employees (particularly our unvaccinated driving associates) to go to smaller employers, if such employers are not subject to future mandates, or leave the trucking industry, (2) result in logistical issues, increased expenses, and operational issues from arranging for weekly tests of our unvaccinated employees, especially our unvaccinated driving associates, (3) result in increased costs for recruitment and retention of driving associates, including the cost of weekly testing, and (4) result in decreased revenue if we are unable to recruit and retain driving associates. Any future vaccination, testing or mask mandates that apply to driving associates could significantly reduce the pool of driving associates available to us and our industry, which would further impact the ongoing extreme shortage of available driving associates. Accordingly, any vaccination, testing or mask mandates, if allowed to go into effect, could have a material adverse effect on our business, financial condition, and results of operations. Available Information General information about the Company is provided, free of charge, regarding Knight at www.knighttrans.com and regarding Swift at www.swifttrans.com . These websites also include links to Knight-Swift's investor site, http://investor.knight-swift.com , which includes our annual reports on Form 10-K with accompanying XBRL documents, quarterly reports on Form 10-Q with accompanying XBRL documents, current reports on Form 8-K with accompanying XBRL documents, and amendments to those reports that are filed or furnished pursuant to Section 13(a) or 15(d) of the Securities Exchange Act of 1934, as soon as reasonably practicable once the material is electronically filed or furnished to the SEC. The SEC maintains an internet site that contains reports, proxy and information statements and other information regarding issuers that file electronically with the SEC at www.sec.gov . 24 Table of Contents Glossary of Terms KNIGHT-SWIFT TRANSPORTATION HOLDINGS INC.