This bill amends the Air Pollution Control Act of January 8, 1960, specifically focusing on the regulation of hazardous air pollutants. It introduces a new provision that allows the Department of Environmental Resources to waive the requirement for opacity monitors at cement plants that are already subject to particulate matter emissions limitations under federal law. This waiver is contingent upon the cement plant having particulate matter monitors in place for the relevant emissions sources.

The amendment aims to streamline regulatory requirements for cement plants while ensuring that air quality standards are still met through existing particulate matter monitoring. The bill is set to take effect 60 days after its passage.