a violation has occurred, the report provided to Congress, the Comptroller General, and relevant inspector general will explain such department, agency, or office’s position. (4) If the report identifies the position of any officer or employee as involved in the violation, such officer or employee shall be provided a reasonable opportunity to respond in writing, and any such response shall be appended to the report. 749. (a) If an executive agency or the District of Columbia government receives a written request for information, documentation, or views from the Government Accountability Office relating to a decision or opinion on budget or appropriations law, the executive agency or the District of Columbia government shall provide the requested information, documentation, or views not later than 20 days after receiving the written request, unless such written request specifically provides otherwise. (b) If an executive agency or the District of Columbia government fails to respond to the request for information, documentation, or views within the time required by this section — (1) the Comptroller General shall notify, in writing, the Committee on Oversight and Reform of the House of Representatives, the Committee on Homeland Security and Governmental Affairs of the Senate, and any other appropriate congressional committee of the House of Representatives and the Senate of such failure