CFR›Title 9›Chapter III›9 CFR Part 591 Citation9 CFR Part 591ContainsSections § 591.1–§ 591.2CorpusDaily eCFRDisplayed edition2026-11-03Last updated2026-11-03 PART 591—SANITATION REQUIREMENTS AND HAZARD ANALYSIS AND CRITICAL CONTROL POINT SYSTEMS Sections § 591.1 § 591.1 Basic requirements. § 591.2 § 591.2 Hazard analysis and HACCP plan. Authority21 U.S.C. 1031-1056; 7 CFR 2.18, 2.53.Source85 FR 68685, Oct. 29, 2020, unless otherwise noted.