Office of Work Program and Budget
Federal Aid Management
State Transportation Improvement Program (STIP)
Federal Advance Construction Program
Federal law allows states to request and receive prior federal approval to "pre-qualify" projects for federal participation at a later date when federal funds become available. These projects are initially financed with state funds and carry the "AC" designation in the STIP detail project listings. For example, projects which eventually will be converted to National Highway Performance Program funds will carry the "ACNP" fund code. Upon conversion, the project will be financed with National Highway Performance Program funds and will carry the "NHPP" fund code. AC funded projects are only converted to federal funds in the first year of the annually adopted STIP, and such conversions are limited by the amount of federal funds available for obligation in the first year of the STIP.