CFR › Title 21 › Part 1230 › §1230.3121 CFR §1230.31Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkCaustic or corrosive substances within the scope of this act (44 Stat. 1406; 15 U.S.C. 401-411) may be sampled wherever found.