lol. Certify what? It’s the classification that counts no that certification.
Do you hear about small transit vans from Ford imported with seats and carpet was less tariff (it was classified as a car) than the same van with no seats or carpet (that’s classified as a truck).
The tariff solution? Either lobby to change the classification of the truck to a car or order the car and strip out the seats and carpet after custom’s clearance.
You obviously are naive or have never dealt with tariffs. Or even government agencies. Though I’m sure you have the best of intentions.
One of my classifications is “motor vehicle”.
car or van, no classification problem
“If your product is difficult to classify, the Customs Rulings Online Search System (CROSS) database can help you find its HS code. CROSS contains official, legally binding rulings from requests for Harmonized Tariff System (HTS) numbers for products importing into the United States.”
https://www.trade.gov/harmonized-system-hs-codes