| Arizona | Gila River Indian Community Department of Environmental Quality - Air Quality Program |
|---|
| Salt River Pima-Maricopa Indian Tribe |
| California | Bishop Paiute Tribe |
|---|
| Fort Independence Indian Community of Paiute Indians of the Fort Independence Reservation |
| Lone Pine Paiute/Shoshone Tribe |
| Tachi-Yokut Tribe |
| Colorado | Southern Ute Tribe |
|---|
| Idaho | Nez Perce Tribe |
|---|
| Kansas | Prairie Band Potawatomi Nation |
|---|
| Maine | Passamaquoddy Tribe |
|---|
| Penobscot Indian Nation |
| Massachusetts | Wampanoag Tribe |
|---|
| Michigan | Grand Traverse Band of Ottawa and Chippewa Indians |
|---|
| The Little River Band of Ottawa Indians |
| Minnesota | Fond du Lac Band of Lake Superior Chippewa Reservation |
|---|
| Leech Lake Band of Ojibwe |
| Mille Lacs Band of Ojibwe |
| Red Lake Band of Chippewa Indians |
| Nevada | Pyramid Lake Paiute Tribe |
|---|
| Walker River Paiute Tribal Air Program |
| New Mexico | Inter-Tribal Environmental Council |
|---|
| Oklahoma | Cherokee Nation |
|---|
| Inter-Tribal Environmental Council |
| Quapaw Tribe |
| South Carolina | Catawba Indian Nation |
|---|
| Texas | Alabama-Coushatta Tribe |
|---|
| Inter-Tribal Environmental Council |
| Utah | Ute Tribe |
|---|
| Washington | Chehalis Tribe |
|---|
| Confederated Tribes of Colville Reservation |
| Kalispel Tribe |
| Makah Tribe |
| Puyallup Tribe |
| Quinault Indian Nation |
| Skokomish Tribe |
| Yakama Tribe |
