21 CFR Part 177: Indirect Food Additives: Polymers
Part 177 of title 21 runs to 88 sections across 2 subparts, and sits in subchapter B, Food for Human Consumption. Every section is reproduced in full and is current to 2026-09-10.

- Sections
- 88
- Subparts
- 2
- Words of regulation
- 47,428
- Current to
- 2026-09-10
Subpart B: Substances for Use as Basic Components of Single and Repeated Use Food Contact Surfaces
- 177.1010 Acrylic and modified acrylic plastics, semirigid and rigid36
- 177.1020 Acrylonitrile/butadiene/styrene co-polymer11
- 177.1030 Acrylonitrile/butadiene/styrene/methyl methacrylate copolymer9
- 177.1040 Acrylonitrile/styrene copoly-mer7
- 177.1050 Acrylonitrile/styrene copoly-mer modified with butadiene/styrene elastomer18
- 177.1060 n-Alkylglutarimide/acrylic copolymers7
- 177.1200 Cellophane10
- 177.1210 Closures with sealing gaskets for food containers13
- 177.1211 Cross-linked polyacrylate copolymers7
- 177.1240 1,4-Cyclohexylene dimethylene terephthalate and 1,4-cyclohexylene dimethylene isophthalate copolymer12
- 177.1310 Ethylene-acrylic acid copolymers9
- 177.1312 Ethylene-carbon monoxide copolymers8
- 177.1315 Ethylene-1, 4-cyclohexylene dimethylene terephthalate copolymers4
- 177.1320 Ethylene-ethyl acrylate copolymers13
- 177.1330 Ionomeric resins33
- 177.1340 Ethylene-methyl acrylate copolymer resins5
- 177.1345 Ethylene/1,3-phenylene oxyethylene isophthalate/ terephthalate copolymer6
- 177.1350 Ethylene-vinyl acetate copolymers19
- 177.1360 Ethylene-vinyl acetate-vinyl alcohol copolymers11
- 177.1380 Fluorocarbon resins14
- 177.1390 Laminate structures for use at temperatures of 250 °F and above47
- 177.1395 Laminate structures for use at temperatures between 120 °F and 250 °F6
- 177.1400 Hydroxyethyl cellulose film, water-insoluble8
- 177.1420 Isobutylene polymers7
- 177.1430 Isobutylene-butene copolymers8
- 177.1440 4,4′-Isopropylidenediphenol-epichlorohydrin resins minimum molecular weight 10,0008
- 177.1460 Melamine-formaldehyde resins in molded articles4
- 177.1480 Nitrile rubber modified acrylonitrile-methyl acrylate copolymers12
- 177.1500 Nylon resins41
- 177.1520 Olefin polymers81
- 177.1550 Perfluorocarbon resins21
- 177.1555 Polyarylate resins7
- 177.1556 Polyaryletherketone resins7
- 177.1560 Polyarylsulfone resins5
- 177.1570 Poly-1-butene resins and butene/ethylene copolymers11
- 177.1580 Polycarbonate resins13
- 177.1585 Polyestercarbonate resins15
- 177.1590 Polyester elastomers4
- 177.1595 Polyetherimide resin5
- 177.1600 Polyethylene resins, carboxyl modified4
- 177.1610 Polyethylene, chlorinated3
- 177.1615 Polyethylene, fluorinated4
- 177.1620 Polyethylene, oxidized4
- 177.1630 Polyethylene phthalate polymers47
- 177.1632 Poly(phenyleneterephthalamide) resins9
- 177.1635 Poly(p-methylstyrene) and rubber-modified poly(p-methylstyrene)9
- 177.1637 Poly(oxy-1,2-ethanediyloxycarbonyl-2,6-naphthalenediylcarbonyl) resins8
- 177.1640 Polystyrene and rubber-modified polystyrene23
- 177.1650 Polysulfide polymer-polyepoxy resins7
- 177.1655 Polysulfone resins7
- 177.1660 Poly (tetramethylene terephthalate)9
- 177.1670 Polyvinyl alcohol film4
- 177.1680 Polyurethane resins6
- 177.1810 Styrene block polymers14
- 177.1820 Styrene-maleic anhydride copolymers8
- 177.1830 Styrene-methyl methacrylate copolymers7
- 177.1850 Textryls7
- 177.1900 Urea-formaldehyde resins in molded articles5
- 177.1950 Vinyl chloride-ethylene copolymers24
- 177.1960 Vinyl chloride-hexene-1 copolymers9
- 177.1970 Vinyl chloride-lauryl vinyl ether copolymers14
- 177.1980 Vinyl chloride-propylene copolymers23
- 177.1990 Vinylidene chloride/methyl acrylate copolymers11
- 177.2000 Vinylidene chloride/methyl acrylate/methyl methacrylate polymers9
Subpart C: Substances for Use Only as Components of Articles Intended for Repeated Use
- 177.2210 Ethylene polymer, chlorosulfonated9
- 177.2250 Filters, microporous polymeric8
- 177.2260 Filters, resin-bonded38
- 177.2280 4,4′-Isopropylidenediphenolepichlorohydrin thermosetting epoxy resins5
- 177.2355 Mineral reinforced nylon resins7
- 177.2400 Perfluorocarbon cured elastomers15
- 177.2410 Phenolic resins in molded articles10
- 177.2415 Poly(aryletherketone) resins4
- 177.2420 Polyester resins, cross-linked10
- 177.2430 Polyether resins, chlorinated3
- 177.2440 Polyethersulfone resins8
- 177.2450 Polyamide-imide resins12
- 177.2460 Poly(2,6-dimethyl-1,4-phenylene) oxide resins12
- 177.2465 Polymethylmethacrylate/poly(trimethoxysilylpropyl)methacrylate copolymers4
- 177.2470 Polyoxymethylene copolymer14
- 177.2480 Polyoxymethylene homopolymer17
- 177.2490 Polyphenylene sulfide resins12
- 177.2500 Polyphenylene sulfone resins4
- 177.2510 Polyvinylidene fluoride resins4
- 177.2550 Reverse osmosis membranes13
- 177.2600 Rubber articles intended for repeated use26
- 177.2710 Styrene-divinylbenzene resins, cross-linked6
- 177.2800 Textiles and textile fibers12
- 177.2910 Ultra-filtration membranes11
Read 21 CFR part 177 at the eCFR · All of 21 CFR for food safety
Questions
- What does 21 CFR part 177 cover?
- 21 CFR part 177 is Indirect Food Additives: Polymers. It runs to 88 sections across 2 subparts and sits in subchapter B of chapter I, Food for Human Consumption.
Every section of part 177 is a clause somebody has to produce evidence for at their next audit. Krolda maps supplier documents to the clause they satisfy in FSSC 22000, IFS Food and 21 CFR 117, and routes the corrective action when the evidence is missing.
Early accessRecall records come from the openFDA food enforcement API, published by the U.S. Food and Drug Administration in the public domain. Krolda adds the hazard classification and the clause mapping; neither is an FDA determination. Always check the FDA notice before acting on a recall.