About Us

Protecting Wyoming’s Environment. Ensuring Wyoming’s Future.

Since 1973, the Wyoming Department of Environmental Quality (DEQ) has served as the state’s regulatory agency charged with protecting, conserving and enhancing Wyoming’s land, air and water for the benefit of current and future generations.

Our scientists and professional staff contribute to the quality of life in Wyoming through a combination of monitoring, permitting, inspection, enforcement, restoration and remediation activities that support responsible stewardship of our state’s natural resources.

Whether you are a homeowner wondering about a project being planned in your neighborhood, an interest group seeking information or a company seeking to establish operations in Wyoming, we are here to answer your questions.

Business Relationships and Economic Development

Large and small businesses throughout the state find DEQ staff effective and responsive. Rules and regulations can be complex and challenging to understand, but we provide the guidance necessary to ensure that your business has the best scientific information to comply with regulations and minimize environmental impact.

We provide meaningful oversight to enable responsible economic development. The agency also works to restore previously polluted and hazardous sites for the benefit of everyone who calls Wyoming home or pays a visit to our great state.

More than 5,000 businesses work with us each year to ensure that operations at more than 28,000 individual facilities throughout the state are in compliance with state and federal laws, rules and regulations.


The Wyoming Department of Environmental Quality is responsible for enforcing state and federal environmental laws including:

The Wyoming Department of Environmental Quality is comprised of seven divisions including:

Contact Us


The Wyoming Department of Environmental Quality
200 West 17th Street
Cheyenne, Wyoming 82002

Phone: 307-777-7937
Fax: 307-777-7682

Social Media:
Twitter @wyodeq

More Information

For a complete listing of our staff, visit our staff directory.

Read more about how to request public records.