Verified
Maryland Trailer Brake Laws 2026: Required Over 3,001 lb
Maryland COMAR states trailers and semitrailers up to 3,000 lb GVWR are not required to have brakes, 3,001-10,000 lb GVWR must have brakes on all wheels of at least one axle, and over 10,000 lb GVWR must have brakes on all wheels.
- Brake threshold
- 3,001lbGVWR
- Breakaway switch
- Required
- Safety chains
- Required
- Towing speed
- Posted limits
- Double towing
- Not recorded
On this page8 sections
Quick answer: 3,001 lb GVWR
In Maryland, trailer brakes are currently listed at 3,001 lb (GVWR). Because Maryland reads GVWR, the number on the trailer data plate decides this — not what the trailer weighs on the day.
Maryland trailer equipment rules
Breakaway switch
Trailers over 10,000 lb registered gross weight, or with air or vacuum brakes, built after June 1 1970 need brakes on all wheels; those over 3,000 up to 10,000 lb need brakes on one axle. Both must apply automatically and stay applied at least 15 minutes on breakaway.
- Applies when
- Trailer type and weight may matter
- Last checked
- 2026-08-21
Safety chains
Every towed vehicle must be coupled by a safety chain, cable or equivalent device in addition to the drawbar or tongue, attached equidistant on opposite sides of the centerline with equal minimal slack, and never connected to the hitch ball or pintle hook.
- Applies when
- Conventional trailer couplings
- Source
- COMAR 11.13.08.06
- Last checked
- 2026-08-21
Speed / lane rule
No towing-specific speed limit; follow posted limits. Limits are set by district and road type — 30 mph business district, 50 mph undivided, 55 mph divided — with no trailer-towing provision.
- Applies when
- Posted roads and vehicle combinations
- Last checked
- 2026-08-21
Double towing
Needs verification with Maryland law.
- 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
How the 3,001 lb threshold applies to three trailers
Maryland measures GVWR, so the rating stamped on the trailer data plate is what counts, whatever the trailer weighs today.
| Example trailer | Weight checked | Against 3,001 lb |
|---|---|---|
| Small utility trailer | 1,650 lb | Under the Maryland threshold by 1,351 lb |
| Loaded just under the line | 2,900 lb | Inside the Maryland limit, but one heavy load away from crossing it |
| Mid-size travel trailer | 4,800 lb | Over the Maryland threshold by 1,799 lb — brakes required |
How Maryland compares with neighbouring states
3 of the 4 states bordering Maryland set a stricter brake threshold, so a trailer that is legal here may need brakes as soon as you cross the line. Equip for the strictest state on your route.
| Bordering state | Brake threshold | Compared with Maryland |
|---|---|---|
| Delaware | 4,000 lb gross weight | 999 lb more permissive |
| Pennsylvania | 3,000 lb gross weight | 1 lb stricter |
| Virginia | 3,000 lb actual weight | 1 lb stricter |
| West Virginia | 3,000 lb gross weight | 1 lb stricter |
Planning a multi-state trip? The route brake law checker compares every state on a route at once.
Official source links
- COMAR 11.14.05.04 trailer and semitrailer brakes public-safety
- Maryland Transportation 22-301 brakes statute
- Maryland DOT dot
Maryland towing law FAQ
Are trailer brakes required in Maryland?
Maryland currently lists a trailer brake threshold at 3,001 lb GVWR. Always verify the official state source before towing.
What weight requires trailer brakes in Maryland?
The current data lists 3,001 lb GVWR as the brake threshold.
Is a breakaway switch required in Maryland?
Trailers over 10,000 lb registered gross weight, or with air or vacuum brakes, built after June 1 1970 need brakes on all wheels; those over 3,000 up to 10,000 lb need brakes on one axle. Both must apply automatically and stay applied at least 15 minutes on breakaway. (Md. Code, Transp. 22-301(e))
Are safety chains required in Maryland?
Every towed vehicle must be coupled by a safety chain, cable or equivalent device in addition to the drawbar or tongue, attached equidistant on opposite sides of the centerline with equal minimal slack, and never connected to the hitch ball or pintle hook. (COMAR 11.13.08.06)
Can I tow two trailers in Maryland?
Needs verification with Maryland law.
Is there a towing speed limit in Maryland?
No towing-specific speed limit; follow posted limits. Limits are set by district and road type — 30 mph business district, 50 mph undivided, 55 mph divided — with no trailer-towing provision. (Md. Code, Transp. 21-801.1)
Does Maryland measure trailer weight as GVWR or actual weight?
Maryland uses GVWR, so the rating on the trailer data plate decides the answer even if the trailer is loaded lighter that day.
Where can I verify Maryland towing laws?
Start with the 3 official sources linked on this page, beginning with COMAR 11.14.05.04 trailer and semitrailer brakes. 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 Maryland sources linked above before towing.