55 Pa. Code § 2070.31
Counties and prime contractors shall be responsible for determining eligibility under this chapter of persons requesting transportation services or on whose behalf services are requested. While counties and prime contractors remain responsible, they may authorize a single provider or more than one provider to perform this function by means of a contract or grant. Counties and prime contractors receiving Public Assistance Transportation Block Grant funds will be held financially liable by the Department for failure to perform eligibility determinations under this chapter.