Verified

Vermont Trailer Brake Laws 2026: Required Over 3,000 lb

Vermont exempts trailers, semitrailers, trailer coaches, and pole trailers not exceeding 3,000 lb only when trailer wheel weight is no more than 40% of the towing vehicle gross weight. Heavier or non-exempt setups need brake verification under the statute.

Brake threshold
3,000lbgross weight
Breakaway switch
Required
Safety chains
Required
Towing speed
Special limit
Double towing
Not recorded
On this page8 sections

Quick answer: 3,000 lb gross weight

In Vermont, trailer brakes are currently listed at 3,000 lb (gross weight). Vermont measures gross weight, so weigh the trailer as you actually tow it.

Vermont trailer equipment rules

Trailer brakes

3,000 lb

Applies when
gross weight
Source
Verified
Last checked
2026-07-13

Breakaway switch

Trailers, semi-trailers and trailer coaches over 3,000 lb gross weight must have driver-applied brakes designed so that on an accidental breakaway the brakes apply automatically and remain applied not less than 15 minutes. At 6,000 lb or more, brakes are required on all wheels.

Applies when
Trailer type and weight may matter
Last checked
2026-08-21

Safety chains

In addition to a hitch, a trailer coach — a trailer designed or used for sleeping, eating or living quarters — must be secured to the towing vehicle by a safety chain, and the hitch, coupling and chain must be adequate to ensure public safety. No general chain statute covers other trailers.

Applies when
Conventional trailer couplings
Last checked
2026-08-21

Speed / lane rule

The general statewide maximum is 50 mph, and there is a towing-specific rule: no person may drive a vehicle towing a trailer exempted from the brake requirements at more than 35 mph.

Applies when
Posted roads and vehicle combinations
Last checked
2026-08-21

Double towing

Needs verification with Vermont statutes.

Applies when
Multiple-trailer combinations
Source
Verified
Last checked
2026-07-13

Read against the linked sources on . Statutes change and enforcement varies by trailer type — confirm before you tow.

Check your setup

lb
Trailer Brake Gain Calculator

How the 3,000 lb threshold applies to three trailers

Vermont measures gross weight, so the weight of the trailer as loaded is what counts.

Worked examples against the Vermont trailer brake threshold
Example trailerWeight checkedAgainst 3,000 lb
Small utility trailer1,650 lbUnder the Vermont threshold by 1,350 lb
Loaded just under the line2,900 lbInside the Vermont limit, but one heavy load away from crossing it
Mid-size travel trailer4,800 lbOver the Vermont threshold by 1,800 lb — brakes required

How Vermont compares with neighbouring states

None of the 3 states bordering Vermont set a stricter numeric brake threshold in this dataset, but bases and equipment rules still differ — check each state page before a trip.

Trailer brake thresholds in states bordering Vermont
Bordering stateBrake thresholdCompared with Vermont
Massachusetts10,000 lb unladen weight7,000 lb more permissive
New Hampshire3,000 lb gross weightSame threshold
New York3,000 lb GVWRSame threshold

Planning a multi-state trip? The route brake law checker compares every state on a route at once.

Official source links

  1. 23 V.S.A. 1307 brake equipment statute
  2. Vermont Agency of Transportation dot

Vermont towing law FAQ

Are trailer brakes required in Vermont?

Vermont currently lists a trailer brake threshold at 3,000 lb gross weight. Always verify the official state source before towing.

What weight requires trailer brakes in Vermont?

The current data lists 3,000 lb gross weight as the brake threshold.

Is a breakaway switch required in Vermont?

Trailers, semi-trailers and trailer coaches over 3,000 lb gross weight must have driver-applied brakes designed so that on an accidental breakaway the brakes apply automatically and remain applied not less than 15 minutes. At 6,000 lb or more, brakes are required on all wheels. (23 V.S.A. 1307(f), (g))

Are safety chains required in Vermont?

In addition to a hitch, a trailer coach — a trailer designed or used for sleeping, eating or living quarters — must be secured to the towing vehicle by a safety chain, and the hitch, coupling and chain must be adequate to ensure public safety. No general chain statute covers other trailers. (23 V.S.A. 1341 (definition at 23 V.S.A. 4(41)))

Can I tow two trailers in Vermont?

Needs verification with Vermont statutes.

Is there a towing speed limit in Vermont?

The general statewide maximum is 50 mph, and there is a towing-specific rule: no person may drive a vehicle towing a trailer exempted from the brake requirements at more than 35 mph. (23 V.S.A. 1081(b); 1083(d))

Does Vermont measure trailer weight as GVWR or actual weight?

Vermont uses gross weight, so weigh the trailer as you actually tow it rather than reading the data plate.

Where can I verify Vermont towing laws?

Start with the 2 official sources linked on this page, beginning with 23 V.S.A. 1307 brake equipment. Prefer state DOT, DMV, legislature, or public-safety pages over summaries from private websites. This page was last checked on 2026-07-13.

Disclaimer: educational summary, not legal advice. Statutes and enforcement practice change — verify the Vermont sources linked above before towing.