But now the company now finds itself in the center of a government investigation some 300 miles to the south, where the Department of Transportation Inspector General (DOT IG) is launching an audit of the Southeastern Pennsylvania Transportation Authority (SEPTA) contract with CRRC to make rail cars for Philadelphia's subway system. Specifically, investigators will examine whether CRRC is meeting Federal Transit Administration Buy America requirements for "rolling stock procurements over the course of this contract and will continue to do so as the contract progresses."