[Code of Federal Regulations] [Title 49, Volume 6] [Revised as of October 1, 2003] From the U.S. Government Printing Office via GPO Access [CITE: 49CFR659.21] [Page 100] TITLE 49--TRANSPORTATION TRANSPORTATION PART 659--RAIL FIXED GUIDEWAY SYSTEMS; STATE SAFETY OVERSIGHT--Table of Contents Subpart B--The Role of the State Sec. 659.21 Designation of oversight agency. (a) For a transit agency or agencies operating within a single State, the State must designate an agency of the State, other than a transit agency, to serve as the oversight agency and to implement the requirements of this part. (b) For a transit agency operating a system within more than one State, those States may designate a single entity, other than the transit agency, to implement the requirements of this part.