21 CFR § 299.3 - Definitions and interpretations.

---
identifier: "/us/cfr/t21/s299.3"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 299.3 - Definitions and interpretations."
title_number: 21
title_name: "Food and Drugs"
section_number: "299.3"
section_name: "Definitions and interpretations."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "C"
subchapter_name: "DRUGS: GENERAL"
part_number: "299"
part_name: "DRUGS; OFFICIAL NAMES AND ESTABLISHED NAMES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 331, 351, 352, 355, 358, 360b, 371."
regulatory_source: "40 FR 14041, Mar. 27, 1975, unless otherwise noted."
cfr_part: "299"
---


# 299.3 Definitions and interpretations.

(a) As used in this part 299, *act* means the Federal Food, Drug, and Cosmetic Act, sections 201-902, 52 Stat. 1040 (21 U.S.C. 321-392), with all amendments thereto.

(b) The definitions and interpretations contained in section 201 of the act shall be applicable to such terms when used in this part 299.

(c) The term *official name* means, with respect to a drug or ingredient thereof, the name designated in this part 299 under section 508 of the act as the official name.