Where You Live
EPA Regions
EPA has ten regional offices, each of which is responsible for several states and territories. To get information about your region, select your state or territory from this list or from the map below.
![Map of the US, split into EPA regions](https://webarchive.library.unt.edu/web/20081105074419im_/http://www.epa.gov/epafiles/images/maps/us-regions.gif)
Regional Clean Diesel Collaboratives
The clean diesel collaboratives are public-private partnerships working to improve air quality by reducing diesel emissions through projects that use innovations in diesel engines, alternative fuels and renewable energy technologies. Working together allows members to leverage funding, share technology and professional expertise.
- Northeast Diesel Collaborative (EPA Regions 1, 2)
- Mid-Atlantic Diesel Collaborative (EPA Region 3)
- Southeast Diesel Collaborative (EPA Region 4)
- Midwest Clean Diesel Initiative (EPA Region 5)
- Blue Skyways Collaborative (EPA Regions 6, 7 plus Minnesota)
- Rocky Mountain Clean Diesel Collaborative (EPA Region 8)
- West Coast Collaborative (EPA Regions 9, 10, w/Canada and Mexico)