What is the 25-year rule for importing cars?
Under NHTSA rules, a motor vehicle at least 25 years old can be imported into the United States without meeting all applicable Federal Motor Vehicle Safety Standards, using Box 1 of form HS-7. The 25 years are counted from the vehicle's actual manufacture date, not its model year alone. This is a safety-standard exemption only: it does not remove EPA emissions requirements, Customs rules or state registration questions, so age alone is never a promise of complete import or road-use eligibility.
A lot of import advice online talks about a 25-year rule for bringing cars into the United States. The rule is real, but it is narrower than many listings suggest, and it sits inside a wider set of agency requirements. Here is what the official material establishes, and where the common assumptions need qualifying.
[1][3]What the safety exemption actually says
NHTSA's importation guidance states that a motor vehicle at least 25 years old can be imported without meeting all applicable Federal Motor Vehicle Safety Standards, and that importers declare this using Box 1 of form HS-7. Two practical points follow. First, the 25-year period is measured from the actual manufacture date, so if the manufacturer's original label does not identify that date, you will need supporting age documentation. Second, a vehicle that does not qualify generally needs a NHTSA eligibility determination and a Registered Importer route, which is a far more involved process.
[1]NHTSA is also explicit that its safety rules are separate from EPA emissions requirements, Customs requirements and state registration requirements. Clearing the age threshold settles only the safety-standards question.
[1]The EPA side: a different threshold and different rules
The EPA runs its own import regime for motor vehicles, engines, recreational vehicles and nonroad engines, with declaration forms such as 3520-1 and 3520-21, certification guidance for manufacturers, independent commercial importers and alternative fuel converters, and a detailed procedures document. Its import overview includes a provision for vehicles over 21 years old, but it comes with conditions: the engine-equivalence requirement means the vehicle must have the same engine model and configuration as originally installed. An arbitrary engine swap does not qualify, and the EPA strongly encourages importers to contact its Imports Hotline before shipping. Nonconforming vehicles may instead need an Independent Commercial Importer for modification, testing and certification, or an applicable EPA exemption.
[2][3]The key trap is assuming the NHTSA 25-year safety exemption also wipes out EPA requirements. It does not. A 26-year-old car may clear the safety question while still needing to satisfy emissions rules, and the EPA's own overview warns against treating the safety exemption as eliminating its requirements.
[1][2]A worked example
Suppose, hypothetically, a buyer has found a 1995 coupe overseas and wants it in the United States. The decision sequence runs like this. Identify the vehicle precisely, including its exact manufacture date, because the 25-year clock runs from manufacture rather than from a rounded model year. Check the NHTSA position: if the manufacture date puts it past 25 years, Box 1 of HS-7 applies; if not, expect the eligibility determination and Registered Importer route. Then check the EPA position for its age band and original engine configuration, and finally the Customs and Border Protection entry requirements, since the EPA page itself notes that importers must also consider the requirements of the Department of Transportation and Customs and Border Protection.
[1][2][3]A short checklist before you commit
- Get the exact manufacture date, not just the model year, and gather supporting age documentation if the original label is unclear.
- Confirm the NHTSA route: Box 1 of HS-7 if the vehicle is at least 25 years old, otherwise an eligibility determination and Registered Importer.
- Check the EPA requirements for the vehicle's age and original engine configuration, and contact the EPA Imports Hotline if in doubt.
- Confirm Customs and Border Protection entry requirements, including duty and documentation.
- Remember that state registration rules apply separately, and none of these agencies' clearances guarantees road-use eligibility everywhere.
- Keep the date you checked each source, since import rules and guidance pages are updated over time.
One last caution: country-level trade statistics and port data tell you nothing about whether your specific car qualifies. Eligibility is decided vehicle by vehicle, against the current official text of each agency's rules.
[1][4]Sources and dates
- https://www.nhtsa.gov/importing-vehicle/importation-and-certification-faqs · accessed 2026-10-18
- https://www.epa.gov/importing-vehicles-and-engines/learn-about-importing-vehicles-and-engines · accessed 2026-10-18
- https://www.epa.gov/importing-vehicles-and-engines · accessed 2026-10-18
- https://vehicleimportfacts.com/ · accessed 2026-10-18