2025-22192: National Hazardous Materials Route Registry
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This notice provides revisions to the National Hazardous Materials Route Registry (NHMRR) reported to FMCSA from April 1, 2024, through March 31, 2025. The NHMRR is a listing, as reported by State 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).
The agency’s own summary, as published.
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