On August 8, 2016 (81 FR 52518) the Federal Motor Carrier Safety Administration (FMCSA) posted a Federal Register notice addressing a revision to the National Hazardous Materials Route Registry. This notice was done in response to the State of California having notified the FMCSA of a revision for their state to their Route Registry. This notice provides the most current revisions to the National Hazardous Materials Route Registry (NHMRR) and procedures to facilitate the update of the NHMRR by State and Tribal government routing agencies. The NHMRR is a listing, as reported by States and Tribal governments, of all designated and restricted road and
preferred highway routes for transportation of highway route controlled quantities (HRCQ) of Class 7 radioactive materials (RAM) (HRCQ/RAM) and non-radioactive hazardous materials (NRHMs).