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United States Department of Transportation United States Department of Transportation

National Hazardous Materials Route Registry

Notice; revisions to the listing of designated and restricted routes for hazardous materials.

This notice makes revisions to the National Hazardous Materials Route Registry (NHMRR) reported to the FMCSA from April 1, 2019 through March 31, 2020. The NHMRR is a listing, as reported by States and Tribal governments, of all designated and restricted roads and preferred highway routes for transportation of highway route controlled quantities of Class 7 (radioactive materials) (HRCQ/RAM) and non-radioactive hazardous materials (NRHM).

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