The winning bid is only one part of importing a car. Eligibility, condition, shipping, customs clearance and state registration each have to work. A mistake near the beginning can become expensive long before the car reaches your driveway.

This guide follows a U.S. personal-use purchase. Requirements elsewhere differ, and the correct route depends on the specific vehicle.

Establish eligibility before bidding

NHTSA's age-based exemption applies when a vehicle is at least 25 years old, measured from its manufacture date. A model-year label is not enough evidence of age.

A younger nonconforming car is not automatically eligible, but “under 25 means impossible” is also wrong. NHTSA describes other routes with their own conditions, including eligible vehicles imported through a Registered Importer and limited-purpose exemptions. An exception must fit the actual transaction; it is not a substitute for the age rule. Use NHTSA's import and certification guidance to establish the applicable basis.

Emissions are a separate assessment. EPA has a provision for vehicles at least 21 years old with qualifying engine configuration. Its current guidance explains that an equivalent replacement must be the same engine model and configuration as the original. A modified car needs particular care; meeting NHTSA's age test does not resolve its EPA status. EPA's importing guidance provides the agency's requirements and contact route.

Buy evidence of condition

Ask the exporter or buying agent for the original auction sheet, a translation and photographs that answer specific questions. Auction grades and symbols are not a universal service history, and their meaning should be checked against the auction house's own system.

A high grade does not establish compression, correct repairs, genuine mileage or the condition of inaccessible structure. Request an inspection appropriate to the car and the purchase value. If that cannot be arranged, treat the gap as uncertainty rather than silently assuming the best.

Agree on the bid ceiling and all agent fees in writing. The most useful ceiling is based on the total amount you can afford after importing and commissioning the vehicle.

Plan transport and documents together

The exporter, carrier and customs broker should agree on the required documents and deadlines before shipment. Ask about the export certificate and translation, invoice, bill of lading, evidence of manufacture date and the relevant federal declarations.

Compare roll-on/roll-off and container quotations on their actual terms. Personal effects, loose parts, vehicle operability, fuel level and insurance conditions depend on the carrier and shipment. A generic rule about what “always” goes in a container can create an avoidable problem.

Record who is responsible for each filing, including any advance cargo-security submission that applies.

Calculate the landed cost

A working budget includes the car, agent and auction fees, transport within Japan, export preparation, ocean freight, insurance, customs charges, brokerage and destination handling. Storage, inspection or cleaning charges can add to it.

Do not assume duty is a fixed low percentage of the winning bid. Classification, origin, age and the rules in force at entry matter. Obtain a current written calculation from the broker for the specific car, using CBP's vehicle-import guidance as a starting point.

Resolve registration before the boat leaves

Federal admission and permission to register a vehicle in your state are different questions. Ask the relevant motor-vehicle and emissions authorities what evidence they require for the exact car and configuration.

Then plan the first inspection and service after arrival. Shipping a car successfully does not make old tires, leaks or unknown maintenance disappear.

A good import purchase ends with a car you can lawfully use and maintain, supported by a document trail you understand. The auction result starts that process; it does not finish it.

Updated September 5, 2026: corrected the treatment of import exemptions and engine equivalence, and removed unsupported tariff percentages and blanket shipping claims.