The term “federal [1] agency” has the same meaning given the term “agency” in section 551(1) of title 5.
The terms “Indian tribe” and “tribe” have the meaning given the term “Indian tribe” in section 5304 of this title.
The term “Indian tribe” includes tribal organizations (as defined in section 5304 of this title).
The term “Indian” shall have the meaning given such term in section 5304(d) of this title.