The Office of Federal Acknowledgment (OFA) within the Office of the Assistant Secretary - Indian Affairs of the Department of the Interior (DOI) implements Part 83 of Title 25 of the Code of Federal Regulations, Procedures for Establishing that an American Indian Group Exists as an Indian Tribe. The acknowledgment process is the Department's administrative process by which petitioning groups that meet the criteria are "acknowledged" as Indian tribes and their members become eligible to receive services provided to members of federally recognized Indian tribes. The acknowledgment regulations are the result of a rulemaking process that included notice and extensive public comment.

Oregon

Coquille Tribe
3050 Tremont
North Bend, Oregon 97459

Confederated Tribes of the Grand Ronde Community
9615 Grand Ronde Road
Grand Ronde, Oregon 97347

Klamath Tribes
P.O. Box 436 or 501 Chiloquin Blvd.
Chiloquin, Oregon 97624

Confederated Tribes of the Siletz Reservation
201 S. E. Swan Avenue or P.O. Box 549
Siletz, Oregon 97380

Confederated Tribes of the Umatilla Reservation
46411 Timine Way
Pendleton, Oregon 97801

South Dakota

Cheyenne River Sioux Tribe
P.O. Box 590 or 2001 Main Street
Eagle Butte, South Dakota 57625

Flandreau Santee Sioux Tribe
P.O. Box 283 or 603 Broad Avenue
Flandreau, South Dakota 57028

Oglala Sioux Tribe
P.O. Box 439
Pine Ridge, South Dakota 57770

Rosebud Sioux Tribe
11 Legion Avenue
Rosebud, South Dakota 57570

Sisseton-Wahpeton Oyate (Lake Traverse Reservation)
45657 Veterans Memorial Drive
Agency Village, South Dakota 57262

Spirit Lake Tribe (Fort Totten Reservation)
P.O. Box 579 or 816 3rd Avenue North
Fort Totten, North Dakota

Yankton Sioux Tribe
P.O. Box 1153
Wagner, South Dakota

Wisconsin

Forest County Potawatomi Indian Community
5416 Everybody's Road
Crandon, Wisconsin 54520

Ho-Chunk Nation
1 Mission Drive
Winnebago, Nebraska 68071

Lac du Flambeau Band of Chippewa
2936 State Highway 47 South
Lac du Flambeau, Wisconsin 54538

Menominee Tribe
P.O. Box 910
Keshena, Wisconsin 54135

Oneida Tribe of Indians of Wisconsin
P.O. Box 365
Oneida, Wisconsin 54155

Stockbridge-Munsee Community of Wisconsin
N8476 Moh Con Nuck Road or P.O. Box 70
Bowler, Wisconsin 54416

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