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As of the end of the period covered by this Quarterly Report on Form 10-Q, the Company carried out, under the supervision and with the participation of the Company’s management, including the Company’s principal executive officer and principal financial officer, an evaluation of the effectiveness of the design and operation of the Company’s disclosure controls and procedures (as defined in Rules13a-15(e) and 15d-15(e) under the Securities Exchange Act of 1934, as amended).
−Removed: Based upon this evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective as of March 31, 2020 .
+Added: Based upon this evaluation, the Company’s principal executive officer and principal financial officer concluded that the Company’s disclosure controls and procedures were effective as of June 30, 2020.
Changes in Internal Control Over Financial Reporting
−Removed: On June 3, 2019 , the Company completed the acquisition of Envigo's nonclinical contract research services business.
−Removed: The Company’s management has extended its oversight and monitoring processes that support internal control over financial reporting to include the acquired Envigo operations.
−Removed: The Company's management is continuing to integrate the acquired operations of Envigo's nonclinical contract research services business into the Company’s overall internal control over financial reporting process.
−Removed: There were no other changes in the Company’s internal control over financial reporting (as defined in Rules13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the quarter ended March 31, 2020 , that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
+Added: There were no changes in the Company’s internal control over financial reporting (as defined in Rules13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934, as amended) that occurred during the quarter ended June 30, 2020, that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
LABORATORY CORPORATION OF AMERICA HOLDINGS AND SUBSIDIARIES
3 unchanged sentences
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.