An Act amending the act of June 1, 1945 (P.L.1242, No.428), known as the State Highway Law, in construction, improvement, maintenance and repair of State highways, further providing for duty on Department of Highways.

HB 312 requires Pennsylvania's Department of Highways to resurface all state highways with two- or three-digit route numbers at least once every 25 years. The bill mandates the department to create a 25-year resurfacing plan for each engineering district, prioritize overdue highways during the final year of each plan, and publish a public list by county showing the last resurfacing year for each highway. This amendment standardizes maintenance schedules and increases transparency about highway upkeep. The bill takes effect 60 days after enactment.