21 CFR § 225.142 - Components.

---
identifier: "/us/cfr/t21/s225.142"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "21 CFR § 225.142 - Components."
title_number: 21
title_name: "Food and Drugs"
section_number: "225.142"
section_name: "Components."
chapter_name: "FOOD AND DRUG ADMINISTRATION, DEPARTMENT OF HEALTH AND HUMAN SERVICES"
subchapter_number: "C"
subchapter_name: "DRUGS: GENERAL"
part_number: "225"
part_name: "CURRENT GOOD MANUFACTURING PRACTICE FOR MEDICATED FEEDS"
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. 351, 352, 360b, 371, 374."
regulatory_source: "41 FR 52618, Nov. 30, 1976, unless otherwise noted."
cfr_part: "225"
---


# 225.142 Components.

Adequate procedures shall be established and maintained for the identification, storage, and inventory control (receipt and use) of all Type A medicated articles and Type B medicated feeds intended for use in the manufacture of medicated feeds to aid in assuring the identity, strength, quality, and purity of these drug sources. Packaged Type A medicated articles and Type B medicated feeds shall be stored in designated areas in their original closed containers. Bulk Type A medicated articles and bulk Type B medicated feeds shall be identified and stored in a manner such that their identity, strength, quality, and purity will be maintained. All Type A medicated articles and Type B medicated feeds shall be used in accordance with their labeled mixing directions.