### Question
How is the term valid prescription defined?


### Answer
The term **valid prescription** is defined in *21 U.S.C. § 829* as the following:

> a prescription that is issued for a legitimate medical purpose in the usual course of professional practice by—


(i) a practitioner who has conducted at least 1 in-person medical evaluation of the patient

#### Citation:
  - *21 U.S.C. § 829*
  - Heading: **CHAPTER 13-DRUG ABUSE PREVENTION AND CONTROL > SUBCHAPTER I-CONTROL AND ENFORCEMENT > Part C-Registration of Manufacturers, Distributors, and Dispensers of Controlled Substances**

