CFR › Title 21 › Part 582 › §582.386221 CFR §582.3862Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Product. Sulfur dioxide.(b)[Reserved](c)Limitations, restrictions, or explanation. This substance is generally recognized as safe when used in accordance with good manufacturing or feeding practice, except that it is not used in meats or in food recognized as source of vitamin B1.