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  • Custom Built Car Registration in Idaho

    Custom-Built Car Registration in Idaho

    Building your custom vehicle is a labor of love. While you're pouring hours into your custom-built car, you may not have considered the additional time required to get your work of art registered in the state of Idaho.

    Since the vehicle is not originally constructed by a manufacturer (or it has been greatly altered from its original build), the state views the car as a conglomeration of parts. Therefore, they will need to look at everything that went into its construction in order to assess the registration specifics.

    On this page, you'll find details about the process of registering and titling your custom-built vehicle in Idaho, and specific instructions to get a specialty or personalized license plate.

    Registering Your Custom-Built Vehicle

    If you are just in the beginning stages of piecing your car together, be sure you keep good records of every detail that will go into constructing the car, including original bills of sale for the parts used.

    The procedure for registering and titling a custom-built car in Idaho varies; just the details of the chassis or the kit can make a difference in the steps involved. Therefore, the state treats the particulars of each custom-built car on a case-by-case basis. The basics of the process are as follows:

    • If your vehicle is less than 10 years old and below 16,000 lbs., you may be required to submit an odometer disclosure report at the time you submit your application.
    • The registration fees in Idaho will vary depending on the age of your vehicle and your county of residence. If you need to get your vehicle identification number (VIN) inspected, you'll be responsible for another $5 fee.
    • You'll be required to submit a title application with its associated fees.

    These registration and titling procedures can even vary from county to county. Hence, you must contact a motor vehicle investigator at your local county assessor's office to determine the steps in registering such a vehicle in your area. You can also contact the Idaho Transportation Department at (208) 334-8649 during office hours (8:30 a.m. to 5:00 p.m. Mountain Time).

    Keep in mind that your vehicle, regardless of model, must meet Federal Motor Vehicle Safety Standards (FMVSS).

    You can read up on a range of related information at any of the following pages:

    NOTE: If there are no recorded liens, the title, registration and license plates will be mailed to the registered owner.

    Special License Plates

    Special plates are also available through the Idaho DMV. To proceed, you'll need to:

    • Fill out the Special Plates for Special Vehicles (Form ITD 3675) and choose which type of vehicle you have, for example a street rod. 
    • Submit payment for your license plate fees. For detailed information, see the form.
      • Most specialty plates will cost you $35 at first, and $25 for the annual renewal fee.
      • Personalized plates cost $25 initially, and then $15 to renew annually.

    If you have any additional questions, contact the DMV Vehicle Services Section (Vehicle Registrations) directly by phone at (208) 334-8663.

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