### Question
What is the definition of authorizing medical professional?


### Answer
The definition of **authorizing medical professional** is as follows in *21 U.S.C. § 823*:

> an emergency or other physician, or another medical professional (including an advanced practice registered nurse or physician assistant)—


(i) who is registered under this chapter

#### Citation:
  - *21 U.S.C. § 823*
  - Heading: **CHAPTER 13-DRUG ABUSE PREVENTION AND CONTROL > SUBCHAPTER I-CONTROL AND ENFORCEMENT > Part C-Registration of Manufacturers, Distributors, and Dispensers of Controlled Substances**

