Administrative subpoena authority lets certain federal agencies compel documents or testimony on their own signature, without first asking a court. The EEOC, OIG, and OSHA each hold this power under a different statute, and the differences matter: one agency can demand live testimony, another is limited to paper, and each sets its own clock for responding and its own route for pushing back. What you can be forced to produce, how quickly, and how you challenge the demand all depend on which agency’s letterhead sits at the top of the page.
What Each Agency Can Compel
The EEOC can require both sworn testimony and the production of documents, records, and correspondence in the recipient’s possession or control. Its authority sits in 42 U.S.C. § 2000e-9, which incorporates the investigatory powers in 29 U.S.C. § 161.1Office of the Law Revision Counsel. 42 USC 2000e-9 – Conduct of Hearings and Investigations Pursuant to Section 161 of Title 292Office of the Law Revision Counsel. 29 USC 161 – Investigatory Powers An individual Commissioner, a District Director, the Director of the Office of Field Programs, or another designated representative can sign the subpoena. It must identify the target, the return date and place, and the nature of the evidence sought.3eCFR. 29 CFR 1601.16 – Subpoenas Neither the charging party nor the employer has any right to demand that a subpoena issue on their behalf.
Investigators use EEOC subpoenas to reach personnel files, payroll records, hiring data, and disciplinary histories. The relevance standard is generous: if information could shed light on the allegations, the agency can pursue it, including comparative data across an entire department or facility when the charge alleges a pattern.
The OIG’s power is narrower. Under 5 U.S.C. § 406, an Inspector General can compel “all information, documents, reports, answers, records, accounts, papers, and other data in any medium (including electronically stored information), as well as any tangible thing and documentary evidence.”4Office of the Law Revision Counsel. 5 USC 406 – Authority of Inspector General What the statute does not authorize is compelled testimony. An IG can administer oaths and take affidavits from willing witnesses under § 406(a)(5), but a witness who simply refuses to appear generally cannot be forced to sit through a subpoena alone. The Department of Defense OIG is the significant exception; it can compel testimony under a separate provision of the Inspector General Act, but must notify the Attorney General at least seven days before issuing that kind of subpoena.
OIG investigations target fraud, waste, and abuse in federal programs and government-funded operations. The subpoena power is built for reaching outside parties like contractors, grantees, and private entities handling federal funds. The statute expressly restricts its use against the IG’s own parent agency: “procedures other than subpoenas shall be used by the Inspector General to obtain documents and information from Federal agencies.”4Office of the Law Revision Counsel. 5 USC 406 – Authority of Inspector General
OSHA sits closer to the EEOC in reach. Under 29 U.S.C. § 657(b), the Secretary of Labor can require the attendance and testimony of witnesses and the production of evidence under oath during inspections and investigations. Witnesses receive the same fees and mileage paid in federal court.5Office of the Law Revision Counsel. 29 USC 657 – Inspections, Investigations, and Recordkeeping OSHA uses two subpoena types. A subpoena duces tecum requires appearance, production of documents, and testimony authenticating them. A subpoena ad testificandum commands a named individual to appear and give sworn testimony.6Occupational Safety and Health Administration. Field Operations Manual – Chapter 15
Deadlines to Respond
OSHA sets the tightest clock. For records that employers must already keep under federal law, such as injury logs and exposure monitoring results, the subpoena typically allows three days from service. For records that go beyond mandatory recordkeeping, like internal safety programs or incident reports, the standard window is five working days.6Occupational Safety and Health Administration. Field Operations Manual – Chapter 15 A subpoena can specify a shorter period when circumstances warrant.
The EEOC’s deadline runs on the challenge side rather than the production side. A petition to revoke or modify must be filed within five days of service, excluding weekends and federal holidays.7eCFR. 29 CFR Part 1601 Subpart B – Investigation of a Charge Missing that window largely closes the administrative route.
OIG subpoenas have no formal administrative challenge process. If a recipient refuses to comply, the agency’s next step is federal court, not an internal review.
How to Challenge or Narrow a Subpoena
For an EEOC subpoena, the formal route is a petition to revoke or modify. The petition goes to the issuing District Director if a director signed it, or to the General Counsel if a Commissioner signed it. You must identify each specific portion you refuse to comply with and state your reasons for each, and you must attach a copy of the subpoena.
The statutory grounds are narrow. Under 29 U.S.C. § 161, the Commission shall revoke a subpoena if the evidence demanded does not relate to the matter under investigation, or if the subpoena fails to describe the requested evidence with enough specificity for you to identify what to produce.2Office of the Law Revision Counsel. 29 USC 161 – Investigatory Powers Those are the two grounds that work on paper. The EEOC rarely revokes its own subpoenas, and most real disputes move on to federal court.
For OSHA and OIG subpoenas, there is no equivalent administrative petition. Objections get preserved in writing to the agency, but the substantive fight happens if and when the agency asks a court to enforce. That court proceeding is where recipients across all three agencies actually test the subpoena.
Privilege and Trade Secret Protections
Attorney-client privilege and work-product protection apply to administrative subpoenas the same way they apply in ordinary litigation. The protections are not waived just because the demand comes from a federal agency. Federal Rule of Evidence 502 governs waiver in federal proceedings and disclosures to federal agencies.8Legal Information Institute. Federal Rule of Evidence 502
An inadvertent production does not automatically waive privilege. Under Rule 502(b), it survives if you took reasonable steps to prevent the disclosure and promptly moved to fix the error once you found it. “Promptly” is the word that matters. Waiting weeks after learning of the mistake will likely cost the protection.
Asserting privilege takes more than a blanket objection. You need to identify the specific documents withheld and explain the basis, typically through a privilege log. An unsupported claim that “everything is privileged” will not survive court review and can invite sanctions. Internal corporate communications are not privileged simply because a lawyer was copied; the communication has to have been made for the purpose of obtaining legal advice and kept confidential.
OSHA subpoenas have a separate confidentiality mechanism for proprietary information. At the start of an inspection, an employer can identify areas of the facility that contain or might reveal trade secrets. If the compliance officer has no clear reason to question the designation, all information obtained from those areas, including photographs and environmental samples, must be labeled “confidential—trade secret.”9eCFR. 29 CFR Part 1903 – Inspections, Citations and Proposed Penalties Once labeled, the information cannot be disclosed except as authorized under Section 15 of the OSH Act.
Section 15, codified at 29 U.S.C. § 664, treats information that contains or might reveal a trade secret as confidential. Disclosure is permitted only to officers and employees carrying out the Act, or where the information is relevant in a proceeding under the Act. In any such proceeding, the Secretary, the Review Commission, or the court must issue protective orders to safeguard confidentiality.10Office of the Law Revision Counsel. 29 USC 664 – Confidentiality of Trade Secrets The trade secret label does not excuse production; it controls what the agency can do with the material afterward.
Court Enforcement and the Powell Test
An administrative subpoena is not self-enforcing. If a recipient refuses and the agency cannot resolve the dispute administratively, the agency must petition a U.S. district court for an enforcement order. The proceeding is summary rather than a full trial, and the court’s review is limited.
The Supreme Court set the governing test in United States v. Powell, 379 U.S. 48 (1964). To obtain enforcement, the agency must show that (1) the investigation is being conducted for a legitimate purpose; (2) the inquiry is relevant to that purpose; (3) the information sought is not already in the agency’s possession; and (4) the agency has followed the administrative steps required by law.11Justia. United States v. Powell, 379 U.S. 48 (1964) Although Powell came out of a tax case, courts apply the framework broadly to administrative subpoenas across federal agencies.
This is where most challenges succeed or fail. Arguing that an investigation is illegitimate rarely works; agencies get significant deference on what they choose to investigate. Relevance is similarly broad, since the information need not be directly incriminating, only potentially useful. The more promising defenses turn on showing the agency already has the material (making the subpoena redundant) or that it skipped a required procedural step. For an EEOC subpoena, that could mean the agency failed to issue a charge before launching the investigation. For an OIG subpoena, it might mean the IG tried to subpoena a fellow federal agency instead of using its internal access procedures.
Consequences of Defying a Court Order
Once a court issues an enforcement order, the subpoena carries the full weight of a judicial command. Refusing at that point constitutes contempt of court. The language in 29 U.S.C. § 161 (EEOC), 5 U.S.C. § 406 (OIG), and 29 U.S.C. § 657(b) (OSHA) all provide that failure to obey the court’s order “may be punished by said court as a contempt thereof.”2Office of the Law Revision Counsel. 29 USC 161 – Investigatory Powers Courts can impose escalating daily fines and, in extreme cases, imprisonment until the recipient complies. Once a federal judge validates the subpoena, the remaining legal options for avoiding disclosure are extremely narrow.