[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: 49CFR397.61] [Page 478] TITLE 49--TRANSPORTATION DEPARTMENT OF TRANSPORTATION PART 397_TRANSPORTATION OF HAZARDOUS MATERIALS; DRIVING AND PARKING RULES--Table of Contents Subpart C_Routing of Non-Radioactive Hazardous Materials Sec. 397.61 Purpose and scope. Source: 59 FR 51830, Oct. 12, 1994, unless otherwise noted. This subpart contains routing requirements and procedures that States and Indian tribes are required to follow if they establish, maintain, or enforce routing designations over which a non-radioactive hazardous material (NRHM) in a quantity which requires placarding may or may not be transported by a motor vehicle. It also provides regulations for motor carriers transporting placarded or marked NRHM and procedures for dispute resolutions regarding NRHM routing designations.