In this chapter:

(1) Agency
The term "agency" has the meaning given the term in section 551 of title 5.

(2) Indian tribe
The term "Indian tribe" has the meaning given the term in section 5304 of this title.

(3) Native Hawaiian organization
The term "Native Hawaiian organization" means a nonprofit organization—

(A) that serves the interests of Native Hawaiians;

(B) in which Native Hawaiians serve in substantive and policymaking positions; and

(C) that is recognized for having expertise in Native Hawaiian culture and heritage, including tourism.

(4) Tribal organization
The term "tribal organization" has the meaning given the term in section 5304 of this title.