Idaho Dirt Bike Laws: Street Legal, OHV Sticker & Riding Rules

Get the complete guide on mandatory OHV titling, annual trail stickers, street legal conversion equipment (mirrors, signals, horn), and helmet laws for minors.
A dirt bike rider kicks up dust on a winding dirt trail in Idaho's scenic mountains during sunset, overlooking a river and valley.

Disclaimer: The information provided by Dirt Legal is for general informational purposes only and does not constitute legal or financial advice. Please consult your CPA or attorney for guidance on all financial and legal matters.

Idaho offers diverse terrains ideal for dirt biking. However, understanding the state’s regulations is crucial to ensure safe and legal riding.

Registration and Titling Requirements

Off-Road Use:

  • Title Requirement: All off-highway vehicles (OHVs), including dirt bikes, must be titled in Idaho.

  • OHV Registration Sticker: An annual OHV registration sticker is required for all off-road vehicles. This sticker must be displayed on the vehicle and is valid from January 1 through December 31.More Information For Registering OHV’s found here.

Street Use:

  • Eligibility: To operate a dirt bike on public roads, it must be converted to meet street-legal requirements.

  • Registration: Street-legal dirt bikes must be registered and display a valid license plate. Idaho STAR

  • Insurance: Liability insurance is mandatory for all street-legal motorcycles.

Converting a Dirt Bike to Street-Legal

To make your dirt bike street-legal in Idaho, ensure it meets the following equipment requirements:

  • Lighting: Headlight (with high/low beam), taillight, and brake light. Idaho STAR

  • Signals: Front and rear turn signals. Idaho STAR

  • Mirrors: At least one rearview mirror that provides a view of the highway for at least 200 feet to the rear. Idaho STAR

  • Horn: Functional horn audible at 200 feet. Idaho Parks and Recreation

  • Tires: DOT-approved tires suitable for highway use.

  • License Plate Bracket: Properly mounted with illumination. Idaho STAR

  • Speedometer: Functional speedometer.

  • Muffler: Must be equipped to prevent excessive noise and have a Forest Service-approved spark arrestor. 

Documentation Needed:

  • Proof of Ownership: Title or Manufacturer’s Certificate of Origin (MCO).

  • Identification: Valid driver’s license.

  • Insurance: Proof of liability insurance meeting Idaho’s minimum requirements. Ada County

Inspection:

  • A VIN inspection may be required to verify the bike’s identity and ensure all equipment meets state standards.
A dirt bike rider in red and black gear kicks up dust while riding through a desert landscape with trees and rocky hills at sunset.

Where You Can Ride Your Dirt Bike

Off-Road Areas:

  • Designated Trails: Idaho offers numerous trails for off-road vehicles. A valid OHV registration sticker is required to ride on these trails.

  • Private Property: Riding on private land is permitted with the landowner’s consent.

Public Roads:

  • Only street-legal dirt bikes with proper registration and equipment are allowed on public roads.

  • Off-road vehicles are prohibited from operating on the interstate highway system. Idaho STAR

Rider Requirements

  • Minimum Age: Operators must be at least 16 years old to ride on public roads and must possess a valid driver’s license.

  • Helmet Use: Riders under 18 are required by law to wear a helmet that meets DOT standards.

  • Eye Protection: Required unless the motorcycle is equipped with a windshield of sufficient height and design.

Insurance Requirements

  • Off-Road Use: Insurance is not legally required for dirt bikes used exclusively off-road. However, it’s recommended to protect against theft, damage, or liability.

  • Street Use: Liability insurance is mandatory for all street-legal motorcycles in Idaho. Minimum coverage limits are:

    • $25,000 for one person sustaining bodily injury or death in an accident.

    • $50,000 for two or more persons sustaining bodily injury or death in an accident.

    • $15,000 for damage to others’ property.
Close-up of the front wheel and suspension of a black dirt bike, showing the knobby tire, disc brake, and muddy forks.

Penalties for Non-Compliance

Failure to adhere to Idaho’s dirt bike laws can result in:

  • Fines: Monetary penalties for violations such as unregistered vehicles or lack of required equipment.

  • Impoundment: Unauthorized vehicles may be impounded by law enforcement.

  • License Suspension: Operating without a valid license or insurance can lead to suspension of driving privileges.

Relevant Idaho Laws and Agencies

  • Idaho Department of Parks and Recreation (IDPR): Oversees OHV registration and trail information.

  • Idaho Transportation Department (ITD): Manages vehicle titling and registration.

  • Idaho Revised Statutes (I.C.):

    • § 49-666: Details helmet requirements for motorcycle and OHV operators under 18.

    • § 67-7122: Outlines OHV registration requirements.

    • § 49-301: Specifies driver’s license requirements for operating motor vehicles.

Start your street-legal process today with Dirt Legal.

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