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About COSA:COSA Commissioners

COSA Commissioners are noted educational leaders who establish policy and review schools for candidacy and accreditation status.

COSA is currently comprised of representatives from eight of the nine reservations within the current boundaries of South Dakota. The Commission representation is the Tribal Education Directors of each of the 9 tribes or their designees:

Deborah Bordeaux
Executive Director

Dr. Cherie Farlee
Tribal Education Director
Cheyenne River Sioux Tribe

Dr. Sherry Johnson
Tribal Education Director
Sisseton Wahpeton Oyate

Dayna Brave Eagle
Tribal Education Director
Oglala Sioux Tribe

Cindy Young
Tribal Education Director
Rosebud Sioux Tribe

Emma Jean Blue Earth
Tribal Education Director
Standing Rock Sioux Tribe

Brian Wagner
Tribal Education Director
Crow Creek Sioux Tribe / Lower Brule Sioux Tribe

Jolene Arrow
Tribal Education Representative
Yankton Sioux Tribe

Our mission:

COSA provides accreditation that promotes quality learning, continuous improvement, and student success.