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§40.121. Who is qualified to act as an MRO? — Inbound Citations

49 C.F.R. § 40.121

Cited by 8 regulations in release 2026-08-27.

Citations to 49 C.F.R. § 40.121 as a whole

  • (b) Reports shall be sent to the Medical Review Officer meeting the requirements of 49 CFR 40.121, as designated by the marine employer submitting the specimen for testing. Wherever a urinalysis report indicates the presence of a dangerous drug or drug metabolite, the Medical Review Officer shall review the report as required by 49 CFR part 40, subpart G, and submit his or her findings to the marine employer. Blood test reports indicating the presence of alcohol shall be similarly reviewed to determine if there is a legitimate medical explanation.
  • (b) As an employer, you are responsible for ensuring that the service agents you use meet the qualifications set forth in this part (e.g., § 40.121 for MROs). You may require service agents to show you documentation that they meet the requirements of this part (e.g., documentation of MRO qualifications required by § 40.121(e)).

Citations to §40.121(a)

Citations to §40.121(b)

Citations to §40.121(c)

Citations to §40.121(d)

Citations to §40.121(e)