New Mexico permits
New Mexico Oversize Permit Rules
Legal limits, escorts, route surveys, utility clearances, city curfews, travel hours, holidays and heavy load reviews for oversize and overweight loads in New Mexico, each checked against the NMDOT rules.
Last checked: Oct 15, 2026
This page is general information only, not legal advice and not a permit. Rules change often and each state's permit and official rules are the final word. Always confirm limits, escorts, routes and travel times with the state permit office before moving a load. Reliable Transport LLC is not responsible for decisions made using this information.
- Route survey
- At 15'6"H
- Escorts start
- 14'W
- Legal size
- 8'6"W, 14'H
Hauling through other states? Use our permit map and route planner
Open the route plannerNMDOT permits
How New Mexico sizes up a heavy load
The New Mexico Department of Transportation (NMDOT) issues special permits for oversize and overweight loads under 18.19.8 NMAC. These are the numbers we plan every New Mexico load with. Run your exact load and route through our permit tool to see every state on the trip.
Check your load
Enter your width, height, length and weight in our permit tool to see the rules for every state on your route, each with its official source.
New Mexico limits
New Mexico legal limits and permit thresholds
Over any legal limit, the load needs an NMDOT special permit before it moves.
New Mexico legal size, weight and permits
Official sources linked| Rule | Limit |
|---|---|
| Legal width | 8'6"W (NM DPS size and weight policy) |
| Legal height | 14'H (NM DPS size and weight policy, 18.19.8 NMAC, NMDOT oversize and overweight rule) |
| Continuous movement | A permit may allow day and night movement for loads up to 10'W, 14'6"H, 120'L and 140,000 lbs (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| Engineering analysis | Over 170,000 lbs gross, before any permit is issued (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
Escorts
New Mexico escort requirements
New Mexico sets escorts by width, length and height, and NMDOT sets the number for wide loads with its escort vehicle map.
New Mexico escorts by load size
Official sources linked| Load | Escorts |
|---|---|
| 14'W and wider | Escort vehicles required; the number comes from the NMDOT escort vehicle map (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| Narrower than 14'W | May be required on some routes, by the escort vehicle map (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| Over 110'1"L up to 120'1"L | One escort (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| Over 120'1"L | Two escorts (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| Over 16'H | The permit may require an escort or a second person to check each overhead clearance (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
| 20'W or more | NMDOT may require police escorts (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment) |
Escort rules come from 18.19.8.81 to 18.19.8.84 NMAC, as amended June 1, 2022. The special permit lists the escorts for each move. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Height and routes
Route surveys, tall loads and utilities
What New Mexico asks of the tallest loads.
Route check
Over 14'H and under 15'6"H, the applicant checks the route for clearance of signals, wires, utility lines, bridges and overpasses. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Route survey
At 15'6"H or higher, a route survey is required. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Height escort
Over 16'H, the permit may require an escort or a second person to check each overhead clearance before the load passes. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Utilities
Over 18'H, written certification from the utility companies is required. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Travel times
Travel hours, nights, weekends and holidays
When a permitted load may move in New Mexico.
Hours
No movement from 30 minutes after sunset to 30 minutes before sunrise, unless the permit allows continuous movement. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Continuous movement
Open to loads up to 10'W, 14'6"H, 120'L and 140,000 lbs, only when the permit says so, and never on holidays or in inclement weather. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
City curfews
Unless the permit says otherwise, no movement on weekdays from 7:00 to 9:00 a.m. or 4:00 to 6:00 p.m. in Santa Fe and Las Cruces, on I 25 from Santa Fe to Los Lunas and on US 285 from Santa Fe to Espanola, or from 7:00 to 9:00 a.m. or 4:00 to 7:00 p.m. in Albuquerque and Rio Rancho. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Holidays
No movement on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day or Christmas Day, from 12:01 a.m. to 11:59 p.m. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Weather
No movement in inclement weather: snow, ice, fog, rain, dust, visibility under 1,000 feet, or for oversize loads, winds of 25 mph or more. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
Superloads
New Mexico superloads
New Mexico rules do not use the word superload. Over 170,000 lbs gross, the application goes to NMDOT, and no permit is issued until an engineering analysis of the route, including bridges, culverts and overpasses, is done and NMDOT approves the move. The analysis may set restrictions on the move. (18.19.8 NMAC, NMDOT oversize and overweight rule, NM Register, 2022 amendment)
See how we plan the biggest loads on our Superload Transport page.
Our moves
Heavy loads we have moved
110,000 lb switchgear building
A switchgear building of 110,000 lbs, from Houston, TX to Los Angeles, CA.
Read the move →CAT 775F off highway truck
A CAT 775F haul truck from Tennessee to California, at 187,000 lbs loaded.
Read the move →150,000 lb transformer
A 150,000 lb transformer from Pocatello, ID to Akron, OH.
Read the move →Moving a load in New Mexico?
Send the dimensions and weight. We file the New Mexico permit and book the escorts.
Request a quote →See every move on our Moves page.
Sources
Official New Mexico sources
Every rule on this page is taken from the official rule text below and confirmed by a second source. Rules we could not confirm twice are left off this page. Rules change, and the permit itself always decides. Last checked: Oct 15, 2026.
Questions
New Mexico permit questions
Does New Mexico require a route survey?
At 15'6"H or higher. Over 18'H, written certification from the utility companies is also required.
What are the legal size limits in New Mexico?
8'6"W and 14'H.
When does New Mexico require escorts?
At 14'W and wider, with the number set by the NMDOT escort vehicle map. Over 110'1"L, one escort; over 120'1"L, two.
Can oversize loads move at night or on holidays in New Mexico?
Not from 30 minutes after sunset to 30 minutes before sunrise, unless the permit allows continuous movement, and never on New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day or Christmas Day.
What happens with a very heavy load in New Mexico?
Over 170,000 lbs gross, no permit is issued until an engineering analysis of the route is done and NMDOT approves the move.
Keep planning
More for your New Mexico move
Permit rules in other states
Hauling through other states? Use our permit map and route planner
Open the route plannerReliable Transport LLC | Reliable Heavy Haul
Ready to move it?
We haul oversize and overweight loads across the USA and Canada from our home base at 7660 W Third St, Dayton, OH 45417. Send your load details and we will plan the New Mexico permit, route and escorts.
This page is general information only, not legal advice and not a permit. Rules change often and each state's permit and official rules are the final word. Always confirm limits, escorts, routes and travel times with the state permit office before moving a load. Reliable Transport LLC is not responsible for decisions made using this information.