New regulations require all commercial driver license (CDL) holders who operate for interstate commerce to keep their current medical examiner’s certificates on file with us. To confirm who has to keep a medical certificate on file, all CDL holders must self-certify in person between January 30, 2012 and January 30, 2014.
To learn more about these new requirements and how to self-certify, see Medical certificates and self-certification.
Prepare for your CDL tests with the Commercial Driver Guide.
Learn what to expect at your knowledge test, and take a practice test.
Find out about the skills tests you need to pass to get your CDL.