(a) 25 U.S.C. 5324(k) allows Tribal organizations, as defined in 25 U.S.C. 5304, that have an active ISDEAA contract, grant, or cooperative agreement to purchase supplies or services for the purposes of carrying out the ISDEAA contract, grant, or cooperative agreement.

(b) 25 U.S.C. 5370 allows Indian Tribes, as defined in 25 U.S.C. 5304, that have an active ISDEAA compact or funding agreement to purchase supplies or services for the purposes of carrying the ISDEAA compact or funding agreement.

(c)25 U.S.C. 5396 allows Indian Tribes, as defined in 25 U.S.C. 5304, that have an active ISDEAA compact or funding agreement to purchase supplies or services for the purposes of carrying out the ISDEAA compact or funding agreement.