Government Regulation (PP) No. 41/1999 on Air Pollution Control is an implementing regulation to
Act No. 23/1997 which relates to air quality management. This PP regulates the preservation of air
quality through implementation of ambient air quality standard, emission standards for industrial
activities and motor vehicles, and Pollutant Standard Index. To implement the articles in this PP, the
State Ministry of Environment (MoE) has issued several regulations and decrees specifically
pertaining to the emissions standards as listed below. It is the duty of the MoE to prepare
guidelines/instructions for implementing law and regulations for local government.