U.S. Code of Federal Regulations

Regulations most recently checked for updates: Aug 27, 2025

All TitlesTitle 21Chapter IPart 173Subpart D - Subpart D—Specific Usage Additives
§ 173.300 - Chlorine dioxide.
§ 173.310 - Boiler water additives.
§ 173.315 - Chemicals used in washing or to assist in the peeling of fruits and vegetables.
§ 173.320 - Chemicals for controlling microorganisms in cane-sugar and beet-sugar mills.
§ 173.322 - Chemicals used in delinting cottonseed.
§ 173.325 - Acidified sodium chlorite solutions.
§ 173.340 - Defoaming agents.
§ 173.342 - Chlorofluorocarbon 113 and perfluorohexane.
§ 173.345 - Chloropentafluoroethane.
§ 173.350 - Combustion product gas.
§ 173.355 - Dichlorodifluoromethane.
§ 173.356 - Hydrogen peroxide.
§ 173.357 - Materials used as fixing agents in the immobilization of enzyme preparations.
§ 173.360 - Octafluorocyclobutane.
§ 173.368 - Ozone.
§ 173.370 - Peroxyacids.
§ 173.375 - Cetylpyridinium chloride.
§ 173.385 - Sodium methyl sulfate.
§ 173.395 - Trifluoromethane sulfonic acid.
§ 173.400 - Dimethyldialkylammonium chloride.
§ 173.405 - Sodium dodecylbenzenesulfonate.
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