49 Transportation 5 2012-10-01 2012-10-01 false Number of drivers' licenses. 383.21 Section 383.21 Transportation Other Regulations Relating to Transportation (Continued) FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION FEDERAL MOTOR CARRIER SAFETY REGULATIONS COMMERCIAL DRIVER'S LICENSE STANDARDS; REQUIREMENTS AND PENALTIES Single License Requirement
ยง 383.21 Number of drivers' licenses.

No person who operates a commercial motor vehicle shall at any time have more than one driver's license.

[64 FR 48110, Sept. 2, 1999]