What New Mexico charges for a single-trip OS/OW permit, the limits that trigger one, and the escort thresholds — read from the state’s own publication. This rule has been in effect since 2025-01-01.
Oversize permit
$25
One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Overweight permit
From $25
Scales with distance and weight — there is no single figure.
A load that is both oversize and overweight pays this fee only, not both.
+ $20 Permigo service fee per permit, state fees at cost.
Legal limits
Exceed any one of these in New Mexico and you need a permit for this state.
Limit
Interstate
Width
8'6"
Height
14'0"
Length
65'0"
Gross weight
86,400 lbs
Single axle
21,600 lbs
Tandem axle
34,320 lbs
Trailer length
57'6"
What the permit costs
New Mexico prices a single-trip permit as flat rate. One price for a single-trip permit, whatever the dimensions. A 9-foot-wide load and a 16-foot-wide load pay the same.
Escort requirements
Thresholds by road class. Where two classes differ, the road you are actually on governs.
Multi-lane
Width
Requirement
12'0" and over
Travel window appliesSub-14' widths can still need escorts on MAPPED corridors: the official NMDOT Escort Vehicle Map requires escorts from 13'6" on Group A routes and from 12' on Group B routes (delivery/pickup), plus listed-city exceptions off the Interstate (18.19.8.81 'may be required for widths less than 14 feet … in accordance with … the escort vehicle map'). Check the map for the route.Metro rush curfews (18.19.8.26): NO weekday movement 7–9 a.m. + 4–7 p.m. within Albuquerque/Rio Rancho city limits (interstates, US highways, state roads), and 7–9 a.m. + 4–6 p.m. in Santa Fe and Las Cruces city limits, I-25 Santa Fe–Los Lunas (+ Los Lunas city limits), US-285 Santa Fe–Española (+ Española city limits), I-10 MM 139–145 and I-25 MM 0–9 at Las Cruces.
14'0" and over
1 rear escortWidth AT OR EXCEEDING 14'0" (INCLUSIVE — 18.19.8.81 verbatim 'at or exceeding 14 feet';)
20'0" and over
1 front escort + 1 rear escortWidth 20'0" or more: FLAGMEN are the mandatory item — 'Flagmen are required on all loads 20 feet wide or wider' (18.19.8.99(A); ≥18 y/o, orange/red jacket + hard hat, 14" STOP/CAUTION paddle; 'Flagmen shall not be used in lieu of an escort vehicle'). Police escorts are DISCRETIONARY — 'police escorts MAY be required … with a width of 20 feet or more'
Height
Requirement
Over 14'0"
Marking requiredHeight greater than 14' (to under 15'6"): the APPLICANT must check the route for clearance of overhead structures — traffic signals, wires, utility lines, bridges, overpasses (18.19.8.36(B); notification-grade duty, not a survey).
15'6" and over
route surveyHeight 15'6" OR GREATER: a formal ROUTE SURVEY is required — 'actual physical measurements … throughout the entirety of the proposed route' (18.19.8.36(C); definition 7(R)); a survey is valid 14 DAYS (18.19.8.30(B)). (Utility certification does NOT start here)
Over 16'0"
Conditions applyHeight exceeding 16': an escort vehicle or an extra person (other than the driver) MAY be required to make immediate height-clearance verifications at each overhead structure (18.19.8.83 — discretionary, not billed; NO height pole exists in NM rules).
Over 18'0"
Conditions applyHeight exceeding 18': written CERTIFICATION from utility companies is required, and 'no person, other than the utility owner, shall move, lift or in any fashion displace an overhead wire' (18.19.8.36(D)).
Length
Requirement
Over 65'0"
Marking requiredNM length legality is config-based: single vehicle 40', combination 65' overall (§66-7-404(B); 18.19.8.37 'shall not exceed sixty-five feet in length except by special permit') — EXCEPT on STAA-designated routes, where a tractor + ≤57'6" semitrailer (or 28'6" doubles) has NO overall cap (§66-7-404(D)). A >65' rig on non-designated roads permits at the flat $25; a legal STAA rig over 65' is the
Over 110'1"
1 rear escortLength 'GREATER THAN 110 FEET AND ONE INCH' (18.19.8.82(B) — the rule's literal wording, to the inch) up to 120'1": ONE escort — rear on multi-lane, front on two-lane (92(G)).
Over 120'1"
1 front escort + 1 rear escortLength greater than 120'1": TWO escorts (18.19.8.82(B) — positions unspecified in rule; front+rear billed as standard practice). 120' is also the multi-trip permit length cap (incl. ≤15' front / ≤25' rear overhang, 18.19.8.51(C)).
Front overhang
Requirement
3'0" and over
Marking requiredFront overhang: legal to 3' (§66-7-406(A)); flags required at ≥3' front overhang on single vehicles (≥2' on combinations — 18.19.8.33). Beyond 3' = permit; overhang escorts are discretionary ('The DOT may require an escort … for movements with a projecting load', 18.19.8.39(E)). Doubles carve-out: NO front overhang allowed (§66-7-406(B)).
Rear overhang
Requirement
4'0" and over
Marking requiredRear overhang ≥4': flags required (18.19.8.33). Legal rear overhang runs to 7' (§66-7-406(A) — a real, general legal, verified); beyond 7' = permit, escort discretionary (39(E)). Doubles carve-out: rear overhang max 2' (§66-7-406(B)). Multi-trip ceiling: ≤25' rear within 120' overall.
Weight
Requirement
Over 86,400 lbs
No escort requiredNo movement during inclement weather (18.19.8.24(B)) — defined to include snow, ice, fog, rain, dust, visibility under 1,000 ft, and (for oversize) wind of 25 mph or more (18.19.8.7(K)). Traffic may not be detained over 10 minutes (92/94); two permitted loads may not cross a bridge simultaneously (18.19.8.27).
Over 170,000 lbs
superload permitGross IN EXCESS OF 170,000 lb
Two-lane
Width
Requirement
12'0" and over
Travel window appliesSub-14' widths can still need escorts on MAPPED corridors: the official NMDOT Escort Vehicle Map requires escorts from 13'6" on Group A routes and from 12' on Group B routes (delivery/pickup), plus listed-city exceptions off the Interstate (18.19.8.81 'may be required for widths less than 14 feet … in accordance with … the escort vehicle map'). Check the map for the route.Metro rush curfews (18.19.8.26): NO weekday movement 7–9 a.m. + 4–7 p.m. within Albuquerque/Rio Rancho city limits (interstates, US highways, state roads), and 7–9 a.m. + 4–6 p.m. in Santa Fe and Las Cruces city limits, I-25 Santa Fe–Los Lunas (+ Los Lunas city limits), US-285 Santa Fe–Española (+ Española city limits), I-10 MM 139–145 and I-25 MM 0–9 at Las Cruces.
14'0" and over
1 front escortWidth AT OR EXCEEDING 14'0" (INCLUSIVE — 18.19.8.81 verbatim 'at or exceeding 14 feet';)
20'0" and over
1 front escort + 1 rear escortWidth 20'0" or more: FLAGMEN are the mandatory item — 'Flagmen are required on all loads 20 feet wide or wider' (18.19.8.99(A); ≥18 y/o, orange/red jacket + hard hat, 14" STOP/CAUTION paddle; 'Flagmen shall not be used in lieu of an escort vehicle'). Police escorts are DISCRETIONARY — 'police escorts MAY be required … with a width of 20 feet or more'
Height
Requirement
Over 14'0"
Marking requiredHeight greater than 14' (to under 15'6"): the APPLICANT must check the route for clearance of overhead structures — traffic signals, wires, utility lines, bridges, overpasses (18.19.8.36(B); notification-grade duty, not a survey).
15'6" and over
route surveyHeight 15'6" OR GREATER: a formal ROUTE SURVEY is required — 'actual physical measurements … throughout the entirety of the proposed route' (18.19.8.36(C); definition 7(R)); a survey is valid 14 DAYS (18.19.8.30(B)). (Utility certification does NOT start here)
Over 16'0"
Conditions applyHeight exceeding 16': an escort vehicle or an extra person (other than the driver) MAY be required to make immediate height-clearance verifications at each overhead structure (18.19.8.83 — discretionary, not billed; NO height pole exists in NM rules).
Over 18'0"
Conditions applyHeight exceeding 18': written CERTIFICATION from utility companies is required, and 'no person, other than the utility owner, shall move, lift or in any fashion displace an overhead wire' (18.19.8.36(D)).
Length
Requirement
Over 65'0"
Marking requiredNM length legality is config-based: single vehicle 40', combination 65' overall (§66-7-404(B); 18.19.8.37 'shall not exceed sixty-five feet in length except by special permit') — EXCEPT on STAA-designated routes, where a tractor + ≤57'6" semitrailer (or 28'6" doubles) has NO overall cap (§66-7-404(D)). A >65' rig on non-designated roads permits at the flat $25; a legal STAA rig over 65' is the
Over 110'1"
1 front escortLength 'GREATER THAN 110 FEET AND ONE INCH' (18.19.8.82(B) — the rule's literal wording, to the inch) up to 120'1": ONE escort — rear on multi-lane, front on two-lane (92(G)).
Over 120'1"
1 front escort + 1 rear escortLength greater than 120'1": TWO escorts (18.19.8.82(B) — positions unspecified in rule; front+rear billed as standard practice). 120' is also the multi-trip permit length cap (incl. ≤15' front / ≤25' rear overhang, 18.19.8.51(C)).
Front overhang
Requirement
3'0" and over
Marking requiredFront overhang: legal to 3' (§66-7-406(A)); flags required at ≥3' front overhang on single vehicles (≥2' on combinations — 18.19.8.33). Beyond 3' = permit; overhang escorts are discretionary ('The DOT may require an escort … for movements with a projecting load', 18.19.8.39(E)). Doubles carve-out: NO front overhang allowed (§66-7-406(B)).
Rear overhang
Requirement
4'0" and over
Marking requiredRear overhang ≥4': flags required (18.19.8.33). Legal rear overhang runs to 7' (§66-7-406(A) — a real, general legal, verified); beyond 7' = permit, escort discretionary (39(E)). Doubles carve-out: rear overhang max 2' (§66-7-406(B)). Multi-trip ceiling: ≤25' rear within 120' overall.
Weight
Requirement
Over 86,400 lbs
No escort requiredNo movement during inclement weather (18.19.8.24(B)) — defined to include snow, ice, fog, rain, dust, visibility under 1,000 ft, and (for oversize) wind of 25 mph or more (18.19.8.7(K)). Traffic may not be detained over 10 minutes (92/94); two permitted loads may not cross a bridge simultaneously (18.19.8.27).
Over 170,000 lbs
superload permitGross IN EXCESS OF 170,000 lb
Movement restrictions
Restriction
In New Mexico
Night travel
Daylight hours only
Weekends
No blanket restriction
Holidays
Restricted
Movement hours
Situation
Window
General OSOW
30 min before sunrise → 30 min after sunset, ANY day — no weekend ban (18.19.8.24/.7(E))
Continuous (night) movement
grantable on the permit for ≤10′W · ≤14′6″H · ≤120′L · ≤140,000 lb (18.19.8.25(A))
Holidays (6, 24-hr day-of)
New Year's · Memorial · July 4 · Labor · Thanksgiving · Christmas (12:01 a.m.–11:59 p.m.; '+ any other holiday designated by the DOT'); Saturday holiday practice: stop Fri sunset+30, resume Sun sunrise−30 (OW-only/continuous may run Fri to 11:59 p.m.)
no movement in inclement weather — snow/ice/fog/rain/dust, visibility <1,000′, wind ≥25 mph for oversize (18.19.8.7(K)/.24(B))
Bridges / traffic
two permitted loads never on a bridge simultaneously (18.19.8.27); traffic detention ≤10 min
Validity
single-trip = 5 days, one-way (18.19.8.50); route survey valid 14 days (.30(B)); multi-trip ≤1 year
Utility service vehicles
exempt from hour/day/weather restrictions (§66-7-413(C))
Where these permits come from
If you file yourself, this is the office you are dealing with. Check the linked page — some states issue OS/OW permits through their highway patrol or revenue department rather than the DOT.
New Mexico permit office
Permit office
505-476-2475
Filing notes
[email protected] · portal NM-OPS: truckpermits.dot.nm.gov (PayIt card vendor since May 2026)
NMSA 1978 §§66-7-402/-404/-406/-409/-410/-413/-413.2 (nmonesource.com official compilation, generated 2026-07-07 · law.justia.com · in effect since 2025-01-01. Fees and rules change; the linked document is always the authority.
Other states
Colour shows how each state prices a permit. Alaska, Hawaii and DC are not served.
