An Act amending the act of January 8, 1960 (1959 P.L.2119, No.787), known as the Air Pollution Control Act, further providing for standards relating to hazardous air pollutants.

HB 435 amends Pennsylvania's Air Pollution Control Act to adjust monitoring requirements for cement plants. It allows the Department of Environmental Resources to remove opacity monitor requirements for cement plants already subject to federal particulate matter (PM) emissions limits, provided those plants use PM monitors. This directly affects cement facilities regulated under federal standards (40 CFR Pt. 63 Subpt. LLL). The change simplifies compliance by eliminating redundant monitoring where PM emissions are already tracked under federal law. The bill focuses on aligning state regulations with existing federal oversight for these facilities.