49 CFR §40.27
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
No, as an employer, you must not require an employee to sign a consent, release, waiver of liability, or indemnification agreement with respect to any part of the drug or alcohol testing process covered by this part (including, but not limited to, collections, laboratory testing, MRO and SAP services).