[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: 49CFR390.17] [Page 319] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 390_FEDERAL MOTOR CARRIER SAFETY REGULATIONS; GENERAL--Table of Contents Subpart B_General Requirements and Information Sec. 390.17 Additional equipment and accessories. Nothing in this subchapter shall be construed to prohibit the use of additional equipment and accessories, not inconsistent with or prohibited by this subchapter, provided such equipment and accessories do not decrease the safety of operation of the commercial motor vehicles on which they are used. [53 FR 18052, May 19, 1988, as amended at 60 FR 38744, July 28, 1995. Redesignated at 65 FR 35296, June 2, 2000]