Federal agencies are required to make employees available to testify, on official time, and to preserve and provide pertinent records to OSC. Civil Service Rule 5.4 (5 C.F.R. § 5.4) provides as follows:
"When required by the Office [of Personnel Management], the Merit Systems Protection Board, or the Special Counsel . . . or by authorized representatives of these bodies, agencies shall make available to them, or their authorized representatives, employees to testify in regard to matters inquired of under the civil service laws, rules, and regulations, and records pertinent to these matters. All such employees, and all applicants and eligibles for positions covered by these rules, shall give to the Office, the Merit Systems Protection Board, the Special Counsel, or to their authorized representatives, all information, testimony, documents, and material in regard to the above matters, the disclosure of which is not otherwise prohibited by law or regulation. These employees, applicants, and eligibles shall sign testimony given under oath or affirmation before an officer authorized by law to administer oaths. Employees are performing official duty when testifying or providing evidence pursuant to this section."
Additionally, federal agencies are prohibited from retaliating against employees who file PPP complaints or cooperate with an OSC investigation.