These Implementing Rules and Regulations shall carry out the national policy of balancing development and environmental protection by formulating a comprehensive national program of air pollution management that shall be implemented by the government.; The text provides for National Ambient Air Quality Guideline Values necessary to protect public health and safety, and general welfare. The Bureau shall delineate areas (attainment areas) where the existing ambient air quality is at or below National Ambient Air Quality Guideline Values and areas (non-attainment areas) where the existing ambient air quality is not in conformance with these values. Existing, new or modified sources in attainment and non-attainment areas must comply with National Emission Standards for Source Specific Air Pollution and Ambient Air Quality Standards pertaining to the source. The Bureau shall design and establish an Ambient Air Monitoring Network for the assessment of ambient air quality, and a National Research and Development Program for the Prevention and Control of Air Pollution. Air pollution clearances and permits for stationary sources shall be necessary to operate.
DENR Administrative Order No. 81 containing implementing rules and regulations of the Philippine Clean Air Act of 1999.