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Title 21

Displaying title 21, up to date as of 7/14/2026. Title 21 was last amended 7/09/2026.
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Title 21Food and DrugsPart / Section
Chapter IFood and Drug Administration, Department of Health and Human Services1 – 1299
Subchapter BFood for Human Consumption100 – 199
Part 177Indirect Food Additives: Polymers177.1010 – 177.2910
Subpart BSubstances for Use as Basic Components of Single and Repeated Use Food Contact Surfaces177.1010 – 177.2000
§ 177.1010Acrylic and modified acrylic plastics, semirigid and rigid.
§ 177.1020Acrylonitrile/butadiene/styrene co-polymer.
§ 177.1030Acrylonitrile/butadiene/styrene/methyl methacrylate copolymer.
§ 177.1040Acrylonitrile/styrene copoly-mer.
§ 177.1050Acrylonitrile/styrene copoly-mer modified with butadiene/styrene elastomer.
§ 177.1060n-Alkylglutarimide/acrylic copolymers.
§ 177.1200Cellophane.
§ 177.1210Closures with sealing gaskets for food containers.
§ 177.1211Cross-linked polyacrylate copolymers.
§ 177.12401,4-Cyclohexylene dimethylene terephthalate and 1,4-cyclohexylene dimethylene isophthalate copolymer.
§ 177.1310Ethylene-acrylic acid copolymers.
§ 177.1312Ethylene-carbon monoxide copolymers.
§ 177.1315Ethylene-1, 4-cyclohexylene dimethylene terephthalate copolymers.
§ 177.1320Ethylene-ethyl acrylate copolymers.
§ 177.1330Ionomeric resins.
§ 177.1340Ethylene-methyl acrylate copolymer resins.
§ 177.1345Ethylene/1,3-phenylene oxyethylene isophthalate/ terephthalate copolymer.
§ 177.1350Ethylene-vinyl acetate copolymers.
§ 177.1360Ethylene-vinyl acetate-vinyl alcohol copolymers.
§ 177.1380Fluorocarbon resins.
§ 177.1390Laminate structures for use at temperatures of 250 °F and above.
§ 177.1395Laminate structures for use at temperatures between 120 °F and 250 °F.
§ 177.1400Hydroxyethyl cellulose film, water-insoluble.
§ 177.1420Isobutylene polymers.
§ 177.1430Isobutylene-butene copolymers.
§ 177.14404,4′-Isopropylidenediphenol-epichlorohydrin resins minimum molecular weight 10,000.
§ 177.1460Melamine-formaldehyde resins in molded articles.
§ 177.1480Nitrile rubber modified acrylonitrile-methyl acrylate copolymers.
§ 177.1500Nylon resins.
§ 177.1520Olefin polymers.
§ 177.1550Perfluorocarbon resins.
§ 177.1555Polyarylate resins.
§ 177.1556Polyaryletherketone resins.
§ 177.1560Polyarylsulfone resins.
§ 177.1570Poly-1-butene resins and butene/ethylene copolymers.
§ 177.1580Polycarbonate resins.
§ 177.1585Polyestercarbonate resins.
§ 177.1590Polyester elastomers.
§ 177.1595Polyetherimide resin.
§ 177.1600Polyethylene resins, carboxyl modified.
§ 177.1610Polyethylene, chlorinated.
§ 177.1615Polyethylene, fluorinated.
§ 177.1620Polyethylene, oxidized.
§ 177.1630Polyethylene phthalate polymers.
§ 177.1632Poly(phenyleneterephthalamide) resins.
§ 177.1635Poly(p-methylstyrene) and rubber-modified poly(p-methylstyrene).
§ 177.1637Poly(oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl) resins.
§ 177.1640Polystyrene and rubber-modified polystyrene.
§ 177.1650Polysulfide polymer-polyepoxy resins.
§ 177.1655Polysulfone resins.
§ 177.1660Poly (tetramethylene terephthalate).
§ 177.1670Polyvinyl alcohol film.
§ 177.1680Polyurethane resins.
§ 177.1810Styrene block polymers.
§ 177.1820Styrene-maleic anhydride copolymers.
§ 177.1830Styrene-methyl methacrylate copolymers.
§ 177.1850Textryls.
§ 177.1900Urea-formaldehyde resins in molded articles.
§ 177.1950Vinyl chloride-ethylene copolymers.
§ 177.1960Vinyl chloride-hexene-1 copolymers.
§ 177.1970Vinyl chloride-lauryl vinyl ether copolymers.
§ 177.1980Vinyl chloride-propylene copolymers.
§ 177.1990Vinylidene chloride/methyl acrylate copolymers.
§ 177.2000Vinylidene chloride/methyl acrylate/methyl methacrylate polymers.