New Mexico Truck Bans & Hazmat Routes

Where New Mexico keeps trucks out

New Mexico has no cars-only parkways and no enclosed hazmat tunnel, but it is a heavy radioactive corridor. Transuranic loads bound for WIPP near Carlsbad run I-40 across the state, then US 285 south. For radioactive and HRCQ shipments the state requires the designated relief and bypass routes around cities, and the posted city truck routes may not be used (18.20.9 NMAC). Everything else follows 49 CFR 397 and the FMCSA registry. Legal height is 14 ft.

Key restrictions

• No parkways or enclosed hazmat tunnels, but a major radioactive corridor
• WIPP-bound loads run I-40 across the state, then US 285 south to Carlsbad
• Radioactive/HRCQ shipments must use designated relief and bypass routes around cities, not the posted city truck routes (18.20.9 NMAC)
• Everything else follows 49 CFR 397 and the FMCSA registry; legal height 14 ft

• Parkway / road ban: No cars-only parkways. The main routing rule is the statewide radioactive/WIPP route designation, which sends those loads onto relief and bypass routes around cities.
• Hazmat: No enclosed-tunnel ban, but strict radioactive routing. Transuranic loads bound for WIPP near Carlsbad run I-40 across the state (Gallup, Grants, Albuquerque, Clines Corners) then US 285 south. Radioactive and HRCQ loads must use designated relief/bypass routes around cities and may not use the posted city truck routes (18.20.9 NMAC, 49 CFR 397).
• Through-truck routes: Cities post local truck routes, but for radioactive and HRCQ shipments the state flips it: use the designated relief and bypass routes around cities, and do not use the posted city truck routes (18.20.9 NMAC). General freight follows posted routes with federal reasonable access to terminals and services.
• Fine: Off-route radioactive or hazmat transport violates state routing rules and 49 CFR 397 and can bring a citation plus liability. Amounts vary by court. Confirm current figures with NMDOT and New Mexico DPS.

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