New Mexico Oversize and Overweight Truck Permits

Jan. 17, 2026, 5:39 p.m.
New Mexico requires special permits for trucks and trailers that exceed legal size or weight limits. These permits ensure road safety, prevent damage to infrastructure, and regulate the movement of oversized or overweight loads. Oversize: Any vehicle or load exceeding width, height, or length limits set by the state. Overweight: Any vehicle or combination exceeding the gross vehicle weight (GVW) or axle weight limits.
New Mexico Oversize and Overweight Truck Permits

Legal Size and Weight Limits in New Mexico

Dimension Legal Limit Without Permit
Width 8 feet 6 inches (102 inches)
Height 14 feet
Length (single vehicle) 40 feet
Length (combination) 75 feet
Maximum GVW 80,000 lbs (standard federal limit)

Exceeding these limits requires a special permit.

 Types of Oversize and Overweight Permits

  1. Single Trip Permit

    • Valid for a one-time movement of a specific oversize/overweight load.

    • Cost depends on weight, dimensions, and route distance.

  2. Annual Permit

    • For carriers moving multiple loads of the same size/weight over a year.

    • Usually more cost-effective for frequent carriers.

  3. Superload Permit

    • For extremely heavy or oversized loads exceeding standard oversize/overweight criteria.

    • Requires special routing and approval from NMDOT.

 How to Apply for a New Mexico Oversize/Overweight Permit

1. Gather Vehicle and Load Information

Prepare:

  • Vehicle type and registration

  • Axle configuration and weight

  • Load dimensions (length, width, height)

  • Proposed route and travel dates

2. Determine Permit Type

  • Single Trip: For one-time delivery

  • Annual: For repetitive loads of similar dimensions

  • Superload: For extreme loads exceeding normal criteria

3. Submit Application

4. Pay Permit Fees

Fees depend on:

  • Number of axles

  • Weight of the vehicle/load

  • Distance traveled

  • Permit type (single vs annual)

5. Receive and Display Permit

  • Keep a copy of the permit in the vehicle during transport

  • Follow all restrictions and conditions listed on the permit

 Rules and Restrictions

  • Travel usually allowed during daylight hours unless otherwise specified.

  • Certain highways, bridges, and tunnels may have restrictions.

  • Some oversize loads require pilot cars or escort vehicles.

  • Police or NMDOT may require route approval in advance.

 Penalties for Non-Compliance

Operating without a required permit or violating permit conditions can result in:

  • Fines and citations

  • Vehicle impoundment

  • Civil liability for road damage

 Tips for Carriers

  • Plan routes ahead using NMDOT map and route guidance.

  • For long-term operations, consider annual permits to save on administrative work.

  • Always verify weight scales and axle limits before travel.

 Summary Table

Category Details
Oversize Criteria Width > 102", Height > 14', Length > 40'/75'
Overweight Criteria GVW > 80,000 lbs
Permit Types Single Trip, Annual, Superload
Application Online at https://www.newmexicotruckingonline.com/  Email to [email protected] / Phone (505) 578-2195
Restrictions Daylight travel, escort vehicles, route approval
Penalties Fines, impoundment, liability

 

 

New Mexico Oversize and Overweight Truck Permits