For the purposes of this chapter, the following definitions apply:

(1) Federal agency

The term “federal ¹ agency” has the same meaning given the term “agency” in section 551(1) of title 5.

(2) Indian tribe

(A) In general

The terms “Indian tribe” and “tribe” have the meaning given the term “Indian tribe” in section 5304 of this title.

(B) Inclusion

The term “Indian tribe” includes tribal organizations (as defined in section 5304 of this title).

(3) Indian

The term “Indian” shall have the meaning given such term in section 5304(d) of this title.

(4) Program

The term “program” means a program described in section 3404(a) of this title.

(5) Secretary

Except where otherwise provided, the term “Secretary” means the Secretary of the Interior.