In what year did Pennsylvania first implement its emissions inspection and maintenance program?

The Pennsylvania emissions inspection and maintenance program was first implemented in 1984 as part of the state's effort to comply with the federal Clean Air Act amendments. This program was introduced to help reduce air pollution by ensuring that vehicles meet specific emissions standards. By mandating regular inspections, Pennsylvania aimed to identify and rectify vehicle emissions issues, thus improving air quality and protecting public health. This early adoption of emissions controls reflected a growing awareness of environmental issues and the need for regulatory measures to address them.