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New Mexico RV length limits
New Mexico's limits for motorhomes, trailers, triple towing and height, quoted from its own law. Enter your rig to check it.
The law in New Mexico
Motorhome: 45 ft
"no motor home shall exceed a length of forty-five feet extreme overall dimension, exclusive of front and rear bumpers, except when operated in combination with another vehicle as provided in this section."
Overall combination: 65 ft
"A combination of vehicles, unless otherwise exempted in this section, shall not exceed an overall length of sixty-five feet, exclusive of front and rear bumpers."
Triple towing: With conditions
"A combination of vehicles coupled together shall not consist of more than two units, except: ... (2) a vehicle shall be permitted to pull two units, provided that the middle unit is equipped with brakes and has a weight equal to or greater than the last unit and the total combined gross weight of the towed units does not exceed the manufacturer's stated gross weight of the towing units;"
Height: 14 ft
"A vehicle shall not exceed a height of fourteen feet."
Width: 102 in (8 ft 6 in)
"The total outside width of any vehicle or its load, excepting mirrors, shall not exceed eight feet six inches."
NMSA 1978, Sections 66-7-402 and 66-7-404 (Chapter 66, Motor Vehicles), checked November 2026.
Truck and trailer or fifth wheel in New Mexico. Yes. Your truck and trailer is within New Mexico's length limits.
Truck and trailer or fifth wheel · New Mexico
Within the limitsYes. Your truck and trailer is within New Mexico's length limits.
Add your height to check it against New Mexico's 14 ft limit.
Overall length
WithinYours 52 ft · limit 65 ft"A combination of vehicles, unless otherwise exempted in this section, shall not exceed an overall length of sixty-five feet, exclusive of front and rear bumpers."
Width: 102 in (8 ft 6 in)
"The total outside width of any vehicle or its load, excepting mirrors, shall not exceed eight feet six inches."
"Safety devices up to three inches on either side of the vehicle and recreational vehicle appurtenances, including retracting awnings, up to six inches on either side of the vehicle are also excepted."
More from New Mexico's law
"A vehicle shall not exceed a length of forty feet extreme overall dimension and no motor home shall exceed a length of forty-five feet extreme overall dimension"
Source: NMSA 1978, Sections 66-7-402 and 66-7-404 (Chapter 66, Motor Vehicles), checked November 2026.
Also read on: NMOneSource Chapter 66 full-text PDF (where 66-7-402 and 66-7-404 were read)
See your rig against every state's limits
A guide to each state's published law, not legal advice. Lengths are measured as each state's law says (bumpers and hitches count in most); posted signs, local roads and permits can differ. The linked law is the authority.
- Each state's own law, quoted
- Motorhome, trailer or triple tow
- Every state on your trip at once
Where to stay in New Mexico
40 RV parks listed in New Mexico.
Other states
RV length limits in other states
- Alabama
- Alaska
- Arizona
- California
- Colorado
- Connecticut
- Delaware
- Florida
- Hawaii
- Idaho
- Illinois
- Indiana
- Iowa
- Kansas
- Kentucky
- Louisiana
- Maine
- Maryland
- Massachusetts
- Michigan
- Minnesota
- Mississippi
- Missouri
- Montana
- Nebraska
- Nevada
- New Hampshire
- New Jersey
- New York
- North Carolina
- North Dakota
- Ohio
- Oklahoma
- Oregon
- Pennsylvania
- Rhode Island
- South Carolina
- South Dakota
- Texas
- Utah
- Vermont
- Virginia
- Washington
- West Virginia
- Wisconsin
- Wyoming
Common questions
RV length and towing questions
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