[Code of Federal Regulations] [Title 23, Volume 1] [Revised as of April 1, 2001] From the U.S. Government Printing Office via GPO Access [CITE: 23CFR500.104] [Page 132] TITLE 23--HIGHWAYS CHAPTER I--FEDERAL HIGHWAY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION PART 500--MANAGEMENT AND MONITORING SYSTEMS--Table of Contents Subpart A--Management Systems Sec. 500.104 State option. Except as specified in Sec. 500.105 (a) and (b), a State may elect at any time not to implement any one or more of the management systems required under 23 U.S.C. 303, in whole or in part.