An Act amending the act of June 24, 1931 (P.L.1206, No.331), known as The First Class Township Code, providing for storm water management plans and facilities.

HB 991 amends Pennsylvania's First Class Township Code to establish new storm water management authority for townships. It authorizes township boards to plan, construct, and maintain storm water facilities (like retention systems and piping) and acquire existing property owner systems through purchase or eminent domain. The bill requires townships to base fees for these systems on property characteristics, particularly impervious surfaces (e.g., roofs, driveways, parking lots), while allowing exemptions for properties with approved storm water management practices. All activities must comply with state storm water laws and approved watershed plans, directly affecting first-class townships and property owners paying associated fees.