Verified
Tennessee Trailer Brake Laws 2026: Required Over 3,000 lb
Tennessee Code 55-9-204 source review verifies the 3,000 lb gross-weight brake and automatic breakaway trigger, with farm-trailer exceptions. TDOT remains linked as the state transportation authority.
- Brake threshold
- 3,000lbgross weight
- Breakaway switch
- Required
- Safety chains
- Required
- Towing speed
- Posted limits
- Double towing
- Not recorded
On this page8 sections
Quick answer: 3,000 lb gross weight
In Tennessee, trailer brakes are currently listed at 3,000 lb (gross weight). Tennessee measures gross weight, so weigh the trailer as you actually tow it.
Tennessee trailer equipment rules
Breakaway switch
Trailers equipped with brakes must have an emergency breakaway braking device. Brakes are required on one axle from 1,500 to 3,000 lb gross weight and on all wheels at 3,000 lb or more.
- Applies when
- Trailer type and weight may matter
- Last checked
- 2026-08-21
Safety chains
Safety chains must be adequate to maintain attachment if the attaching device fails, and two chains are required to be crossed under the hitch.
- Applies when
- Conventional trailer couplings
- Last checked
- 2026-08-21
Speed / lane rule
No towing-specific speed limit; follow posted limits. Statutory maximums are 70 mph on interstates and 65 mph on all other public roads, with lower truck-only limits possible locally.
- Applies when
- Posted roads and vehicle combinations
- Source
- Tenn. Code Ann. 55-8-152
- Last checked
- 2026-08-21
Double towing
Needs verification with Tennessee 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 3,000 lb threshold applies to three trailers
Tennessee measures gross weight, so the weight of the trailer as loaded is what counts.
| Example trailer | Weight checked | Against 3,000 lb |
|---|---|---|
| Small utility trailer | 1,650 lb | Under the Tennessee threshold by 1,350 lb |
| Loaded just under the line | 2,900 lb | Inside the Tennessee limit, but one heavy load away from crossing it |
| Mid-size travel trailer | 4,800 lb | Over the Tennessee threshold by 1,800 lb — brakes required |
How Tennessee compares with neighbouring states
1 of the 8 states bordering Tennessee 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 Tennessee |
|---|---|---|
| Alabama | 3,000 lb gross weight | Same threshold |
| Arkansas | 3,000 lb gross weight | Same threshold |
| Georgia | 3,000 lb gross weight | Same threshold |
| Kentucky | verified stopping-distance performance rule | Different rule type — compare directly |
| Mississippi | 2,000 lb gross weight | 1,000 lb stricter |
| Missouri | verified trailer-type rule | Different rule type — compare directly |
| North Carolina | 4,000 lb gross weight | 1,000 lb more permissive |
| Virginia | 3,000 lb actual weight | Same threshold |
Planning a multi-state trip? The route brake law checker compares every state on a route at once.
Official source links
Tennessee towing law FAQ
Are trailer brakes required in Tennessee?
Tennessee 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 Tennessee?
The current data lists 3,000 lb gross weight as the brake threshold.
Is a breakaway switch required in Tennessee?
Trailers equipped with brakes must have an emergency breakaway braking device. Brakes are required on one axle from 1,500 to 3,000 lb gross weight and on all wheels at 3,000 lb or more. (Tenn. Code Ann. 55-9-204, per Tennessee Highway Patrol trailer inspection requirements)
Are safety chains required in Tennessee?
Safety chains must be adequate to maintain attachment if the attaching device fails, and two chains are required to be crossed under the hitch. (Tenn. Code Ann. 55-7-114, per Tennessee Highway Patrol trailer inspection requirements)
Can I tow two trailers in Tennessee?
Needs verification with Tennessee law.
Is there a towing speed limit in Tennessee?
No towing-specific speed limit; follow posted limits. Statutory maximums are 70 mph on interstates and 65 mph on all other public roads, with lower truck-only limits possible locally. (Tenn. Code Ann. 55-8-152)
Does Tennessee measure trailer weight as GVWR or actual weight?
Tennessee uses gross weight, so weigh the trailer as you actually tow it rather than reading the data plate.
Where can I verify Tennessee towing laws?
Start with the 2 official sources linked on this page, beginning with Tennessee Highway Patrol trailer inspection requirements (cites TCA 55-7-114, 55-9-204). 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 Tennessee sources linked above before towing.