How It Works

12-Year Program (TYP)

The 12-Year Program (TYP) is Pennsylvania’s official mid-range planning tool. It lists statewide planned projects and assigns funding to projects over a 12-year period. The first four years comprise the Statewide Transportation Improvement Program (STIP).

Who creates it?

PennDOT creates the TYP and submits it to the State Transportation Commission (STC) for adoption.

When is it updated?

The TYP is updated every two years after regional Transportation Improvement Programs (TIPs) are submitted and approved by Metropolitan and Rural Planning Organizations (MPOs and RPOs). PennDOT combines the 24 individual regional TIPs with two statewide TIPs to create the Statewide Transportation Improvement Program (STIP). The STIP is also the first four years of the TYP. 

The Public Comment Period for the update of the 2023 TYP began on March 1 and concluded on April 14, 2021. The 2023 TYP was adopted by the STC on August 17, 2022.

How does it impact the planning process?

The TYP aligns with the policies, visions, and goals in the LRTP. It includes 12 years of programming – or lists of projects and associated funding. Learn more about the TYP process here.


What laws and regulations are involved?

  • PA State Law Act 120 of 1970

Public Participation Opportunities

The Public Comment Period for the update of the 2023 TYP began on March 1 and concluded on April 14, 2021. The Online Public Forum was held on March 23, 2021. The results of the Transportation Survey are now available on the Survey Results page. Join the mailing list to receive notifications about future opportunities.

    2023 12-Year Program

    The 2023 TYP was adopted by the STC on August 17, 2022. The TYP represents PennDOT’s continued commitment to enhanced decision-making and the purposeful planning initiatives launched during the program development process. For a printable version of the 2023 TYP, click here (PDF, 10MB). Learn more about the TYP process here.

    The TYP incorporates rail freight projects through the Rail Freight Assistance Program (RFAP) and the Rail Transportation Assistance Program (RTAP). Review the current rail projects.

    The TYP incorporates aviation projects through the Bureau of Aviation. Review the current aviation projects.

    Read the Adopted 2023 TYP Change Report TYP Process