49 CFR § 390.103 - Eligibility requirements for medical examiner certification.
(1) Be licensed, certified, or registered in accordance with applicable State laws and regulations to perform physical examinations. The applicant must be an advanced practice nurse, doctor of chiropractic, doctor of medicine, doctor of osteopathy, physician assistant, or other medical professional authorized by applicable State laws and regulations to perform physical examinations.
(2) Register on the National Registry website and receive a National Registry number before taking the training that meets the requirements of § 390.105.
(3) Complete a training program that meets the requirements of § 390.105.
(4) Pass the medical examiner certification test provided by FMCSA and administered by a testing organization that meets the requirements of § 390.107 and that has electronically forwarded to FMCSA the applicant's completed test information no more than 3 years after completion of the training program required by paragraph (a)(3) of this section.
(b) If a person has medical examiner certification from FMCSA, then to renew such certification the medical examiner must remain qualified under paragraph (a)(1) of this section and complete additional testing and training as required by § 390.111(a)(5).