PO Box 15004, Flagstaff, AZ 86011-5004
Phone: (928) 523-0526
Fax: (928) 523-1266 Andy.Bessler@nau.edu
Tribal Designations Workgroup
The NTAA/EPA Tribal Designations Workgroup is now inactive.
In the past, the Tribal Designations Workgroup provided an opportunity for Tribal air quality professionals to interact
directly with EPA officials about previous EPA NAAQS Designations. The National Designation & Implementation Work Group
(2001 - 2003) took a close look at the potential impacts to Tribes from the NAAQS Designations process, starting with Ozone.
See below for documents related to the work of the Tribal Designations Workgroup: