12-Year Program

The STC is responsible for reviewing and approving Pennsylvania’s 12-Year Program (TYP), which is the Commonwealth’s official transportation program. The TYP is a multimodal, fiscally-constrained program of transportation improvements spanning a 12-year period. Multimodal means that the TYP includes all travel modes, including highways, bridges, public transit, aviation, rail, and bicycle and pedestrian facilities. PA State Law, Act 120 of 1970, as amended, requires PennDOT to prepare, update and submit Pennsylvania’s TYP every two years to the STC. It is then sent to the Governor, the General Assembly and the Secretary of Transportation.