CFR › Title 21 › Part 582 › §582.373921 CFR §582.3739Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)Product. Sodium bisulfite.(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.