Trailer Brake Laws by State
Search trailer brake thresholds, breakaway status, safety-chain status, source quality, and official state links. These summaries are educational and not legal advice; verify official state sources before towing.
Checking a route across multiple states?
Build a state-by-state trip plan and compare trailer brake, breakaway, and safety-chain requirements across every state on the route.
Brake-law rule types
Some states use direct numeric thresholds. Others use stopping-distance performance rules or trailer-type rules. The table below labels those differences instead of forcing every state into a fake pound cutoff.
| State | Threshold | Breakaway | Safety chains | Last verified | Source status | Detail |
|---|---|---|---|---|---|---|
| Alabama | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Alabama Trailer Brake Laws |
| Alaska | 5,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Alaska Trailer Brake Laws |
| Arizona | 3,000 lb | Needs verification | Needs verification | 2026-06-18 | verified | Arizona Trailer Brake Laws |
| Arkansas | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Arkansas Trailer Brake Laws |
| California | 1,500 lb | Needs verification | Needs verification | 2026-06-18 | verified | California Trailer Brake Laws |
| Colorado | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Colorado Trailer Brake Laws |
| Connecticut | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Connecticut Trailer Brake Laws |
| Delaware | 4,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Delaware Trailer Brake Laws |
| Florida | 3,000 lb | Required | Needs verification | 2026-06-18 | verified | Florida Trailer Brake Laws |
| Georgia | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Georgia Trailer Brake Laws |
| Hawaii | 3,000 lb | Required | Required | 2026-07-13 | verified | Hawaii Trailer Brake Laws |
| Idaho | 1,500 lb | Required | Needs verification | 2026-07-13 | verified | Idaho Trailer Brake Laws |
| Illinois | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Illinois Trailer Brake Laws |
| Indiana | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Indiana Trailer Brake Laws |
| Iowa | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Iowa Trailer Brake Laws |
| Kansas | Performance rule | Needs verification | Needs verification | 2026-07-13 | verified | Kansas Trailer Brake Laws |
| Kentucky | Performance rule | Needs verification | Needs verification | 2026-07-13 | verified | Kentucky Trailer Brake Laws |
| Louisiana | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Louisiana Trailer Brake Laws |
| Maine | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Maine Trailer Brake Laws |
| Maryland | 3,001 lb | Needs verification | Needs verification | 2026-07-13 | verified | Maryland Trailer Brake Laws |
| Massachusetts | 10,000 lb | Needs verification | Required | 2026-07-13 | verified | Massachusetts Trailer Brake Laws |
| Michigan | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Michigan Trailer Brake Laws |
| Minnesota | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Minnesota Trailer Brake Laws |
| Mississippi | 2,000 lb | Required | Needs verification | 2026-07-13 | verified | Mississippi Trailer Brake Laws |
| Missouri | Trailer-type rule | Required | Needs verification | 2026-07-13 | verified | Missouri Trailer Brake Laws |
| Montana | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Montana Trailer Brake Laws |
| Nebraska | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Nebraska Trailer Brake Laws |
| Nevada | 1,500 lb | Required | Needs verification | 2026-07-13 | verified | Nevada Trailer Brake Laws |
| New Hampshire | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | New Hampshire Trailer Brake Laws |
| New Jersey | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | New Jersey Trailer Brake Laws |
| New Mexico | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | New Mexico Trailer Brake Laws |
| New York | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | New York Trailer Brake Laws |
| North Carolina | 4,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | North Carolina Trailer Brake Laws |
| North Dakota | Trailer-type rule | Needs verification | Required | 2026-07-13 | verified | North Dakota Trailer Brake Laws |
| Ohio | Trailer-type rule | Needs verification | Needs verification | 2026-07-13 | verified | Ohio Trailer Brake Laws |
| Oklahoma | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Oklahoma Trailer Brake Laws |
| Oregon | Performance rule | Needs verification | Required | 2026-07-13 | verified | Oregon Trailer Brake Laws |
| Pennsylvania | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Pennsylvania Trailer Brake Laws |
| Rhode Island | 4,000 lb | Required | Needs verification | 2026-07-13 | verified | Rhode Island Trailer Brake Laws |
| South Carolina | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | South Carolina Trailer Brake Laws |
| South Dakota | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | South Dakota Trailer Brake Laws |
| Tennessee | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Tennessee Trailer Brake Laws |
| Texas | 4,500 lb | Required | Required | 2026-07-13 | verified | Texas Trailer Brake Laws |
| Utah | Performance rule | Needs verification | Required | 2026-07-13 | verified | Utah Trailer Brake Laws |
| Vermont | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Vermont Trailer Brake Laws |
| Virginia | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Virginia Trailer Brake Laws |
| Washington | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | Washington Trailer Brake Laws |
| West Virginia | 3,000 lb | Required | Needs verification | 2026-07-13 | verified | West Virginia Trailer Brake Laws |
| Wisconsin | 3,000 lb | Needs verification | Needs verification | 2026-07-13 | verified | Wisconsin Trailer Brake Laws |
| Wyoming | Performance rule | Needs verification | Needs verification | 2026-07-13 | verified | Wyoming Trailer Brake Laws |
Brake threshold
The trailer weight point where state law may require service brakes. The basis can be GVWR, actual weight, gross weight, or unknown.
GVWR
Gross Vehicle Weight Rating is the maximum loaded weight rating assigned by the manufacturer.
Breakaway switch
A device that applies trailer brakes if the trailer separates from the tow vehicle. Requirements vary by state and trailer type.
Safety chains
Rated chains or cables that provide a secondary connection between trailer and tow vehicle if the coupler disconnects.