The National Registry of Certified Medical Examiners is a federal program that establishes requirements for healthcare professionals performing physical examinations for commercial drivers. To become certified, medical examiners must complete training and testing on physical qualification standards. The registry ensures examiners understand how to apply DOT medical regulations and was created to enhance driver health and reduce crashes by preventing unfit drivers from receiving certifications. Commercial drivers are now required to pass physicals from examiners listed on the registry and medical certificates will include the examiner's registry number.