### Question
What does Indian tribe mean?


### Answer
**Indian tribe** has the following meaning in *43 U.S.C. § 2421*:

> given the term in section 450b of title 25.

#### Citation:
  - *43 U.S.C. § 2421*
  - Heading: **CHAPTER 42-RURAL WATER SUPPLY > SUBCHAPTER II-TWENTY-FIRST CENTURY WATER WORKS**

