If you are an FTA recipient, you must require in your DBE program that each transit vehicle manufacturer, as a condition of being authorized to bid or propose on FTA-assisted transit vehicle procurements, certify that it has complied with the DBE program requirements. You do not include FTA assistance used in transit vehicle procurements in the base amount from which your overall goal is calculated.
Under the U.S. DOT DBE regulations, a transit vehicle manufacturer means any manufacturer whose primary business purpose is to build vehicles specifically for public mass transportation. Such vehicles include, but are not limited to, buses, rail cars, trolleys, ferries and vehicles manufactured specifically for paratransit purposes. The definition includes producers of vehicles that receive post-production alterations or retrofitting to be used for public transportation purposes. Businesses that manufacture vehicles solely for personal use and for sale “off the lot” are not considered transit vehicle manufacturers. (49 CFR 26.5)
Learn more here: https://www.transit.dot.gov/TVM.