49 CFR 385.203: Certification requirements for performing a safety audit or investigation.

(a) On and after August 27, 2021, an individual who is not qualified under § 385.201(a) may not perform a safety audit or investigation, including review, unless the individual has been certified by FMCSA or a State or local agency applying the FMCSA standards after successfully completing classroom training and examinations on the FMCSRs and HMRs as described in detail on the FMCSA website (www.fmcsa.dot.gov/certification). These individuals must also comply with the maintenance of certification/qualification requirements of paragraph (b) of this section.

(b) An individual may not perform a safety audit or investigation, including review, unless the individual meets the quality-control and periodic re-training requirements adopted by FMCSA to ensure the maintenance of high standards and familiarity with amendments to the FMCSRs and HMRs. These maintenance of certification/qualification requirements are described in detail on the FMCSA website (www.fmcsa.dot.gov/certification).

(c) The requirements of paragraphs (a) and (b) of this section for training, performance, and maintenance of certification/qualification, which are described on the FMCSA website (www.fmcsa.dot.gov/certification), are also available in hard copy from the Federal Motor Carrier Safety Administration, Office of Enforcement and Compliance, 1200 New Jersey Ave. SE, Washington, DC 20590; Attention: Chief, Compliance Division at (202) 366-1812.