Republic Act No. 8749 is also known as?  *Philippine Clean Air Act,Philippine Drug Awareness ActNSTP Act of 2001

Republic Act No. 8749 is also known as the Philippine Clean Air Act. This legislation was enacted to maintain healthy air quality in the Philippines and establishes a comprehensive air quality management program. It aims to achieve and maintain the quality of air in the country that meets or exceeds national standards, protecting the environment and public health from the harmful effects of air pollution.

The act outlines various measures and responsibilities for pollution control, establishes the Environmental Management Bureau to enforce these regulations, and encourages the participation of local government units in air quality management. It also promotes public awareness regarding air pollution and its effects, highlighting the importance of clean air for the overall well-being of the population. Thus, the correct answer is Philippine Clean Air Act.