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Under the supervision, and with the participation of our management, including our Chief Executive Officer and Chief Financial Officer, we have evaluated the effectiveness of our disclosure controls and procedures, as defined under Exchange Act Rules 13a-15(e) and 15d-15(e), as of the end of the period covered by this quarterly report.
−Removed: Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of September 30, 2020.
+Added: Based on that evaluation, the Chief Executive Officer and Chief Financial Officer concluded that our disclosure controls and procedures were effective as of March 31, 2021.
Changes in Internal Control Over Financial Reporting
−Removed: During the period covered by this report, there were no changes in our internal control over financial reporting that have materially affected, or that are reasonably likely to materially affect, our internal control over financial reporting.
−Removed: For the year ended December 31, 2019, management’s assessment of our internal control over financial reporting excluded the internal control over financial reporting of CSI Electrical Contractors, Inc., which was acquired on July 15, 2019.
−Removed: Pursuant to the SEC’s general guidance that a recently acquired business may be omitted from the scope of an assessment in the year of the acquisition, the scope of our assessment does not include CSI Electrical Contractors, Inc.
−Removed: Our assessment of the effectiveness of internal control over financial reporting as of December 31, 2020 will include CSI Electrical Contractors, Inc.
−Removed: As of September 30, 2020, CSI Electrical Contractors, Inc.
−Removed: represented a total of approximately 16.5% and 18.1% of total assets and net assets, respectively, and 15.1% and 7.6% of contract revenues and income before income taxes, respectively, for the quarter then ended.
+Added: During the period covered by this report, there were no changes in our internal control over financial reporting that materially affected, or that are reasonably likely to materially affect, our internal control over financial reporting.
PART II—OTHER INFORMATION
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Compared sentence by sentence after normalising whitespace, quotation marks, case and digits, so re-formatting and restated figures do not read as changed language. Wording changes appear as one removal and one addition. The current filing and the prior one are authoritative.