Participants in IFTA include the 48 contiguous states of the United States, and 10 Canadian Provinces
A commercial vehicle may be considered qualified if they are used to transport goods or people across multiple jurisdictions. Qualified vehicles include trucks with three or more axles, or trucks with two axles and a gross vehicle weight that is more than 26,000 pounds (or truck with trailer that exceeds 26,000 pounds).
There may be instances of a vehicle that may not require an IFTA license despite meeting this criteria, please refer to the official DOT site for details.