### Question
What is the definition of service unit?


### Answer
The definition of **service unit** is as follows in *25 U.S.C. § 2403*:

> an administrative entity within the Indian Health Service or a tribe or tribal organization operating health care programs or facilities with funds from the Indian Health Service under the Indian Self-Determination Act [25 U.S.C. 450f et seq.] through which the services are provided, directly or by contract, to the eligible Indian population within a defined geographic area

#### Citation:
  - *25 U.S.C. § 2403*
  - Heading: **CHAPTER 26-INDIAN ALCOHOL AND SUBSTANCE ABUSE PREVENTION AND TREATMENT > SUBCHAPTER I-GENERAL PROVISIONS**

