49 U.S.C. § 31308
Section 31308 · Commercial drivers license
Current version, with additions and removals from the June 9, 1998 version.
(1) an individual issued a commercial driver's license—
(B) present certification of completion of driver training that meets the requirements established by the Secretary under section 31305(c);
(2) before a commercial driver's license learner's permit may be issued to an individual, the individual must pass a written test, that complies with the minimum standards prescribed by the Secretary under section 31305(a), on the operation of the commercial motor vehicle that the individual will be operating under the permit;
(B) the social security account number or other number or information the Secretary decides is appropriate to identify the individual;
(B) the social security account number or other number or information the Secretary decides is appropriate to identify the individual;