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CFR > Title 49 - Transportation > SUBTITLE B—Other Regulations Relating to Transportation > CHAPTER III—FEDERAL MOTOR CARRIER SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION (Parts 300–399) > SUBCHAPTER B—FEDERAL MOTOR CARRIER SAFETY REGULATIONS (Parts 350–399) > PART 383—COMMERCIAL DRIVER'S LICENSE STANDARDS; REQUIREMENTS AND PENALTIES > SUBPART B—Single License Requirement (§383.21 to §383.23) > 383.21—Number of drivers' licenses.
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]