Standards & Regulations
In Montana, there are several layers of air quality protection. In this section, you will find more information about air quality programs and regulations at the federal, state, and local level. To learn more about federal regulations, such as the National Ambient Air Quality Standards, and the activities of the Air Quality Bureau related to those regulations, visit the “Meeting Federal Standards” page. At the state level, air quality protections are implemented through both legislative action and rulemaking. For links to state air quality statutes and rules, visit the “State Rules” page. In addition to state regulation, several counties across the state administer local air quality programs. Learn more about these programs, including contact information and links to county air quality websites, by visiting the “Local Programs” page.