EPA MVAC Certification Practice Exam 2025 – Complete Study Guide

The primary function of the EPA under the Clean Air Act is to establish air quality standards. This responsibility is critical for maintaining and improving air quality to protect public health and the environment. The agency sets National Ambient Air Quality Standards (NAAQS) for six common air pollutants, which include carbon monoxide, lead, nitrogen dioxide, ozone, particulate matter, and sulfur dioxide. These standards provide a framework for states to develop effective plans to reduce air pollution and protect communities from health risks associated with poor air quality. Establishing these standards is vital for ensuring that the air remains clean and safe for all individuals while also addressing broader environmental concerns.