[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: 49CFR399.201] [Page 500] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 399_EMPLOYEE SAFETY AND HEALTH STANDARDS--Table of Contents Subpart L_Step, Handhold, and Deck Requirements for Commercial Motor Vehicles Sec. 399.201 Purpose and scope. Subparts A-K [Reserved] Subpart L_Step, Handhold, and Deck Requirements for Commercial Motor Vehicles Sec. 399.201 Purpose and scope. 399.203 Applicability. 399.205 Definitions. 399.207 Truck and truck-tractor access requirements. 399.209 Test procedures. 399.211 Maintenance. Authority: 49 U.S.C. 31502; and 49 CFR 1.73. Source: 44 FR 43732, July 26, 1979, unless otherwise noted. Editorial Note: Nomenclature changes to part 399 appear at 66 FR 49874, Oct. 1, 2001. Subparts A-K [Reserved] This subpart prescribes step, handhold, and deck requirements on commercial motor vehicles. These requirements are intended to enhance the safety of motor carrier employees.