Title 21 of the Code of Federal Regulations


Title 21 is the portion of the Code of Federal Regulations that governs food and drugs within the United States for the Food and Drug Administration, the Drug Enforcement Administration, and the Office of National Drug Control Policy.
It is divided into three chapters:
  • Chapter I — Food and Drug Administration
  • Chapter II — Drug Enforcement Administration
  • Chapter III — Office of National Drug Control Policy

    Chapter I

Most of the Chapter I regulations are based on the Federal Food, Drug, and Cosmetic Act.
Notable sections:
The 100 series are regulations pertaining to food:
The 200 and 300 series are regulations pertaining to pharmaceuticals :
  • 202-203 Drug advertising and marketing
  • 210 et seq. cGMPs for pharmaceuticals
  • 310 et seq. Requirements for new drugs
  • 328 et seq. Specific requirements for over-the-counter drugs.
The 500 series are regulations for animal feeds and animal medications:
  • 510 et seq. New animal drugs
  • 556 Tolerances for residues of drugs in food animals
The 600 series covers biological products :
The 700 series includes the limited regulations on cosmetics:
  • 701 Labeling requirements
The 800 series are for medical devices:
The 900 series covers mammography quality requirements enforced by CDRH.
The 1000 series covers radiation-emitting device ; requirements enforced by the Center for Devices and Radiological Health. It also talks about the FDA citizen petition.
The 1100 series includes updated rules deeming items that statutorily come under the definition of "tobacco product" to be subject to the Federal Food, Drug, and Cosmetic Act as amended by the Tobacco Control Act. The items affected include E-cigarettes, Hookah tobacco, and pipe tobacco.
The 1200 series consists of rules primarily based in laws other than the Food, Drug, and Cosmetic Act:
  • 1240 Rules promulgated under 361 of the Public Health Service Act on interstate control of communicable disease, such as:
  • * Requirements for pasteurization of milk
  • * Interstate shipment of turtles as pets.
  • * Interstate shipment of African rodents that may carry monkeypox.
  • * Sanitation on interstate conveyances
  • 1271 Requirements for human cells, tissues, and cellular and tissue-based products.

    Chapter II

Notable sections: