Colorado Boating Information
Registration Questions:(303) 791-1920
Boating Registration Website:
State Tax Department Website:
Registration Grace Period (Days):30 days
Boat Sales & Use Tax Rate:2.9%
Credit For Tax Paid In Another State:Yes
State Decal Required For Documented Vessel:Yes
Boat Titles Issued:No
Notes:Local Sales and Use Tax also apply
Boating Law Administrator(303) 791-1954
Maximum Speed Limit:Posted Speed Limit
Maximum Dimensions For Trailer:45' L x 8'6" W x 13'6" H
Maximum Overall Length with Vehicle & Trailer:70'
Minimum Weight Requiring Separate Trailer Brakes:3000 lbs
Trailer Equipment Requirements:
Safety Chains:Yes
Brake Lights:Yes
Clearance Lights:Yes
License Light:Yes
Turn Signals:Yes
Flares:No, Commercial Vehicles Only
Breakaway Breaks:Yes
Two Trailers:Yes, up to 70'
Insurance:Not required specifically for the trailer, may fall under the vehicle insurance.
Wide Trailer Permit Office:(800) 350-3765
For specific questions about boating issues or BoatUS Government Affairs, please e-mail the department at