### Question
Can you define what substance use disorder means?


### Answer
**Substance use disorder** is defined as the following in *29 U.S.C. § 3225a*:

> given such term by the Assistant Secretary for Mental Health and Substance Use.

#### Citation:
  - *29 U.S.C. § 3225a*
  - Heading: **CHAPTER 32-WORKFORCE INNOVATION AND OPPORTUNITY > SUBCHAPTER I-WORKFORCE DEVELOPMENT ACTIVITIES > Part D-National Programs**

