CFR › Title 21 › Part 582 › §582.105721 CFR §582.1057Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Product. Hydrochloric acid.(b)[Reserved](c)Limitations, restrictions, or explanation. This substance is generally recognized as safe when used as a buffer and neutralizing agent in accordance with good manufacturing or feeding practice.