New Mexico

New Mexico interstate GVW limit: 80,000 lbs. State highways allow up to 86,400 lbs with proper axle configuration. Per-axle limits: Single axle 21,600 lbs, Tandem axle 34,320 lbs, Tridem axle 42,000 lbs. Federal bridge formula on interstates; New Mexico allows 8% over federal limits on state roads. Enforcement tolerance: Limited tolerance on state highways (built into higher state limits).

Height: 14 ft. Width: 8 ft 6 in. Trailer length: 57 ft 6 in (semitrailer). Overall combination length: 65 ft combination (75 ft with permit).

Oversize/overweight permits through NMDOT online system Fees: Single-trip: $20; Annual: $100. Vermont oversize permits are not directly honored in New Mexico. You will need to obtain a New Mexico-specific permit for oversize/overweight loads. Apply online: https://www.dot.nm.gov/business-support/motor-carrier-services/ Enforcement: Motor Transportation Division enforcement; weigh stations on interstates.

Agricultural: Agricultural vehicles exempt on state highways; livestock haulers have special provisions.

For the most current weight and size regulations, permit applications, and seasonal restriction updates, visit the official New Mexico DOT page at https://www.dot.nm.gov/business-support/motor-carrier-services/. Contact the New Mexico Department of Transportation for specific routing questions.