California Trailer Brake Laws 2026: 1,500 lb Rule
State towing-law summaries are educational only and are not legal advice. Verify your trailer type, actual weight or GVWR, and equipment requirements with official California sources before towing.
Quick answer: 1,500 lb gross weight
In California, trailer brakes are currently listed at 1,500 lb (gross weight). Breakaway equipment and safety chains may also be required depending on trailer type, weight, and coupling. Always verify with official California sources before towing.
| Requirement | State rule | Applies when | Source | Last checked |
|---|---|---|---|---|
| Trailer brakes | 1,500 lb | gross weight | Verified | 2026-06-18 |
| Breakaway switch | Needs verification | Trailer type and weight may matter | Verified | 2026-06-18 |
| Safety chains | Needs verification | Conventional trailer couplings | Verified | 2026-06-18 |
| Speed / lane rule | 55 mph towing rule should be verified against current California Vehicle Code before relying on it. | Posted roads and vehicle combinations | Verified | 2026-06-18 |
| Double towing | Needs verification with California Vehicle Code and DMV guidance. | Multiple-trailer combinations | Verified | 2026-06-18 |
Official source links
California DMV states brakes are required on trailer coaches or camp trailers with gross weight of 1,500 lb or more.
Compliance checklist
- Verify trailer GVWR and loaded weight before the trip.
- Check whether brakes are required under the 1,500 lb.
- Inspect brake controller, seven-way connector, and trailer brake function.
- Confirm breakaway battery, switch, cable routing, and pin condition.
- Use properly rated safety chains and attachment points.
- Check posted speed limits, lane rules, and trailer tire speed rating.
Related towing tools
California towing law FAQ
Are trailer brakes required in California?
California currently lists a trailer brake threshold at 1,500 lb gross weight. Always verify the official state source before towing.
What weight requires trailer brakes in California?
The current data lists 1,500 lb gross weight as the brake threshold.
Is a breakaway switch required in California?
The breakaway-switch rule for California needs verification with official state sources.
Are safety chains required in California?
The safety-chain rule for California needs verification with official state sources.
Can I tow two trailers in California?
Needs verification with California Vehicle Code and DMV guidance.
What is the safest speed when towing in California?
55 mph towing rule should be verified against current California Vehicle Code before relying on it. Even where no special towing speed is verified, reduce speed for trailer tire ratings, grades, wind, and stopping distance.
Do RVs and travel trailers follow the same rules in California?
Many brake rules apply by trailer type and weight, but RV, travel trailer, boat trailer, and utility trailer definitions can differ. Verify your exact trailer type with official state sources.
Where can I verify California towing laws?
Use the official source links on this page first. Prefer state DOT, DMV, legislature, highway patrol, or public-safety pages over summaries from private websites.