Montana Department of Environmental Quality

About us

The Montana Department of Environmental Quality work to implement Montana’s environmental laws and provide high quality public service and technical assistance. Our team is here to serve you and ensure all Montanans have clean air, water, and land free from contamination for generations to come.
Montana DEQ’s mission is to champion a healthy environment for a thriving Montana. At DEQ, we believe Montana communities and businesses thrive when environmental protections are implemented effectively in a consistent and transparent way.
Every day, we work closely with stakeholders and partners in private industry, non-governmental organizations, tribes, the public, and local governments to identify opportunities to improve our service.