[Code of Federal Regulations] [Title 49, Volume 5] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR383.37] [Page 196] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 383_COMMERCIAL DRIVER'S LICENSE STANDARDS; REQUIREMENTS AND PENALTIES--Table of Contents Subpart C_Notification Requirements and Employer Responsibilities Sec. 383.37 Employer responsibilities. No employer may knowingly allow, require, permit, or authorize a driver to operate a CMV in the United States: (a) During any period in which the driver has a CMV driver's license suspended, revoked, or canceled by a State, has lost the right to operate a CMV in a State, or has been disqualified from operating a CMV; (b) During any period in which the driver has more than one CMV driver's license; (c) During any period in which the driver, or the CMV he or she is driving, or the motor carrier operation, is subject to an out-of-service order; or (d) In violation of a Federal, State, or local law or regulation pertaining to railroad-highway grade crossings. [64 FR 48110, Sept. 2, 1999]