9 CFR § 591.1 - Basic requirements.
---
identifier: "/us/cfr/t9/s591.1"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "9 CFR § 591.1 - Basic requirements."
title_number: 9
title_name: "Animals and Animal Products"
section_number: "591.1"
section_name: "Basic requirements."
chapter_name: "FOOD SAFETY AND INSPECTION SERVICE, DEPARTMENT OF AGRICULTURE"
subchapter_number: "I"
subchapter_name: "EGG PRODUCTS INSPECTION"
part_number: "591"
part_name: "SANITATION REQUIREMENTS AND HAZARD ANALYSIS AND CRITICAL CONTROL POINT SYSTEMS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "21 U.S.C. 1031-1056; 7 CFR 2.18, 2.53."
regulatory_source: "85 FR 68685, Oct. 29, 2020, unless otherwise noted."
cfr_part: "591"
---
# 591.1 Basic requirements.
(a) All official plants must comply with the sanitation requirements contained in part 416 of this chapter, Sanitation, except as otherwise provided in this chapter.
(b) All official plants must comply with the Hazard Analysis and Critical Control Point (HACCP) Systems requirements contained in part 417 of this chapter, except as otherwise provided in this chapter.
(c) For the purposes of this chapter, parts 416, Sanitation, 417, Hazard Analysis and Critical Control Point (HACCP) Systems, and 500, Rules of Practice, an official establishment or establishment includes an official plant.