Custom
Aluminum Boat
Trailers

Check The United States Trailer Braking Laws Before You Tow Your Boat Trailer!!!

State By State Braking Laws
From the Digest of Motor Laws / AAA / Edition 73
State  State DOT or DMV Phone Number State DOT or DMV Web Address Width Height
Max Total Length Max Trailer Length Trailer Braking System Requirements

Alabama 334-242-6358 www.dot.state.al.us 102″ 13′ 6″ N/A 40′ Required over 3000 lbs. GVW

Alaska 907-465-3900 www.dot.state.ak.us 102″ 14′ 75′ 40′ Required over 5000 lbs. GVW

Arizona 602-712-7227 www.azdot.gov 102″ 13′ 6″ 65′ 40′ Required over 3000 lbs. GVW

Arkansas 501-569-2612 www.ahtd.state.ar.us 102″ 13′ 6″ 65′ 53.5′ Required over 3000 lbs. GVW / all trailers weighing 1500 lbs or more shall have brakes on all wheels .

California 916-654-5266 www.dot.ca.gov 102″ 14′ 65′ 40′ Required over 3000 lbs.
GVW / on at least 2 wheels

Colorado 800-999-4997 www.dot.state.co.us 102″ 14′ 6″ 70′ N/A Required over 3000
lbs. GVW

Connecticut 860-594-3000 www.dot.state.ct.us 102″ 13′ 6″ 60′ N/A Required over
3000 lbs. GVW, On all wheels.  All trailers over 8000 lbs. GVW, shall be capable
of braking by foot or hand.

Delaware 302-760-2080 www.deldot.net 102″ 13′ 6″ 65′ 40′ Every motor vehicle
when operated on a highway shall be equipped with brakes adequate to control the
movemant, and to stop and hold such vehicle and any trailer attached thereto,
including 2 separate means of applying the brakes.

Dist. Columbia 202-673-6813 www.ddot.dc.gov/main.shtm N/A 13′ 6″ 85′ 60′
Required over 3000 lbs. GVW, On all wheels

Florida 850-414-4100 www.dot.state.fl.us 102″ 13′ 6″ 65′ 40′ Required over 3000
lbs. GVW, On all wheels.

Georgia 404-656-5267 www.dot.state.ga.us 102″ 13′ 6″ 60′ N/A Required over 3000
lbs. GVW, On all wheels.

Hawaii 808-587-2150 www.state.hi.us/dot/ 108″ 14′ 65′ 40′ Required over 3000
lbs. GVW

Idaho 208-334-8000 www.itd.idaho.gov 102″ 14′ 75′ 48′ Trailers with a unladen
weight of 1500 lbs. Must have independent braking system

Illinois 217-782-7820 www.dot.state.il.us/ 102″ 13′ 6″ 65′ 60′ Required over
3000 lbs. GVW

Indiana 317-232-5533 www.in.gov/dot/ 102″ 13′ 6″ 65′ N/A Required over 3000 lbs.
GVW

Iowa 515-239-1101 www.dot.state.ia.us 102″ 13′ 6″ 70′ N/A Required over 3000
lbs. GVW

Kansas 785-296-3566 www.ksdot.org 102″ 14′ 65′ N/A Every combination of vehicles
shall have a service breaking system, which will stop such combination within 40
feet from an initial speed of 20 mph.

Kentucky 502-564-4890 www.kytc.state.ky.us 96″ 13′ 6″ 63′ N/A Kentucky law does
not specifically require brakes on trailers, however, vehicles singular or in
combination must be able to stop within distance specified by statute.

Louisiana 225-379-1100 www.dotd.state.la.us 96″ 13′ 6″ 70′ 40′ Required over
3000 lbs., GVW On all wheels.

Maine 207-624-3000 www.maine.gov/mdot 102″ 13′ 6″ 65′ 48′ Required over 3000
lbs., GVW On all wheels.

Maryland 410-865-1142 www.mdot.state.md.us/ 102″ 13′ 6″ 55′ 40′ Required over
3000 lbs. GVW.  Not required on all wheels if trailer does not exceed 40% of the
GVW of the towing vehicle.  Over 10,000 lbs required on all wheels

Massachusetts 617-973-7800 www.state.ma.us/mhd/ 102″ 13′ 6″ 65′ 40′ Every
trailer having an unladed weight of more than 10,000 lbs shall be equipped with
air or electric brakes.

Michigan 517-373-2090 www.michigan.gov/mdot 102″ 12′ 6″ 65′ 45′ Required over
3000 lbs. GVW

Minnesota 651-296-3000 www.dot.state.mn.us/ 102″ 13′ 6″ 60′ 45′ A trailer with a
gross weight of 3000 lbs, GVW or more, or a gross weight that exceeds the empty
weight of the towing vehicle, must be equipped with brakes that can adequately
control the movement of and stop and hold the trailer.

Mississippi 601-359-7001 www.mdot.state.ms.us 102″ 13′ 6″ 53′ 40′ Required over
2000 lbs. GVW, On all wheels.

Missouri 888-275-6636 www.modot.state.mo.us/ 102″ 13′ 6″ 55′ / 65′ N/A
Independent breaking system not required except on trailers coupled by a 5th
wheel & kingpin.

Montana 406-444-6200 www.mdt.state.mt.us 102″ 14′ 65′ N/A Required over 3000
lbs. GVW, On all wheels.  Less than 3000 lbs GVW not required if the total
weight of the trailer does not exceed 40% of the GVW of the towing vehicle.

Nebraska 402-471-2281 www.dmv.state.ne.us 102″ 14′ 6″ 65′ 40′ Required over 3000
lbs. GVW                            Over 6500 lbs GVW require brakes on all
wheels.                 

Nevada 775-888-7000 www.nevadadot.com 102″ 14′ 70′ N/A Required over 1500 lbs.
GVW, On all wheels.

New Hampshire 603-271-3734 www.state.nh.us/dot 102″ 13′ 6″ N/A 48′ Every trailer
shall at a speed of 20 mph be capable of stopping within a distance of 30 feet.

New Jersey 609-530-3536 www.state.nj.us/transportation/ 102″ 13′ 6″ 50′ 40′
Every trailer must be equipped with brakes and be synchronized with towed
vehicle.

New Mexico 505-827-5100 www.nmshtd.state.nm.us 102″ 14′ 75′ 40′ Required over
3000 lbs. GVW

New York 518-457-6195 www.dot.state.ny.us 102″ 13′ 6″ 65′ 48′ Required on
trailers that weigh over 1000 lbs. / adequate brakes requires over 3000 lb GVW

North Carolina 919-733-2522 www.ncdot.org 96″ 13′ 6″ 60′ 35′ Required over 4000
lbs. GVW

North Dakota 701-328-2500 www.nd.gov/dot 102″ 14′ 75′ 53′ Every trailer must be
equipped with adequate brakes.

Ohio 614-466-2335 www.dot.state.oh.us 102″ 13′ 6″ 65′ 40′ Brakes required if the
trailer has an empty weight of over 2000 lbs

Oklahoma 405-522-8000 www.okladot.state.ok.us 102″ 13′ 6″ 65′ 40′ Required over
3000 lbs. GVW

Oregon 888-ASK-ODOT www.odot.state.or.us/home 102″ 14′ 65′ 45′ Independent
braking system not required but combination of vehicles must stop within legal
limits.

Pennsylvania 717-787-2838 www.dot.state.pa.us/ 102″ 13′ 6″ 60′ N/A Every trailer
must be equipped with adequate brakes.

Rhode Island 401-222-2481 www.dot.state.ri.us 102″ 13′ 6″ 60′ N/A Required over
4000 lbs. GVW, On all wheels.

South Carolina 803-737-2314 www.dot.state.sc.us/ 102″ 13′ 6″ N/A 48′ Required
over 3000 lbs. GVW, On all wheels. Under 3001 lbs brakes not required unless
trailer exceeds 40% of the towing vehicle gross weight.

South Dakota 605-773-3265 www.sddot.com N/A 14′ N/A N/A Required on all
trailers.

Tennessee 615-741-2848 www.tdot.state.tn.us/ 102″ 13′ 6″ N/A N/A Required over
3000 lbs. GVW

Texas 512-463-8588 www.dot.state.tx.us/txdot.htm 102″ 13′ 6″ 65′ N/A Required
over 4500 lbs. GVW

Utah 801-965-4559 www.dot.state.ut.us 102″ 14′ 65′ 40′ Every combination of
vehicle shall at a speed of 20 mph be capable of stopping within a distance of
40 feet.

Vermont 802-828-2657 www.aot.state.vt.us 102″ 13′ 6″ 65′ 45′ Required over 3000
lbs. GVW on at least 1 axle.  Over 6000 lbs GVW required on all wheels

Virginia 804-786-2801 http://virginiadot.org/ 102″ 13′ 6″ 65′ 45′ Required over
3000 lbs. GVW

Washington 360-705-7000 www.wsdot.wa.gov 102″ 14′ 60′ N/A Required on all
trailers on all wheels. Under 3000 lbs  not required unless trailer exceeds 40%
of the towing vehicle gross weight.

West Virginia 800-642-9066 www.wvdot.com 102″ 13′ 6″ 75′ 40′ Required over 3000
lbs. GVW

Wisconsin 608-266-1466 www.dot.wisconsin.gov/ 102″ 13′ 6″ 60′ N/A Required over
3000 lbs. GVW

Wyoming 307-777-4714 http://wydotweb.state.wy.us 102″ 14′ 65′ 45′ Every
combination of vehicle shall at a speed of 20 mph be capable of stopping within
a distance of 40 feet.

               
DISCLAIMER:  GREAT LAKES TRAILER ASSUMES NO LIABILITY IN THE INFORMATION
PROVIDED ABOVE.

WE SUGGEST IF YOU HAVE SPECIFIC INFORMATION OR TO VERIFY THE INFORMATION
PROVIDED AS STATE LAWS CHANGE OFTEN, USE THE SUPPLIED PHONE NUMBERS OR WEB SITES
FOR THE SPECIFIC STATE IN QUESTION.

               
INFORMATION PROVIDED FROM THE AAA DIGEST OF MOTOR LAWS EDITION #73 
Great Lakes Trailer   :   P: 440.729.2800   :   info@greatlakestrailer.com