SearchWhat the source says
The federal shell-egg Salmonella rule applies to covered shell-egg producers and sets requirements tied to flock size, biosecurity, testing, refrigeration, and records, subject to its exemptions.
Sources checked August 18, 2026 · 21 CFR Part 118; State and local rules are not included.
Conditions, thresholds, exceptions, and duties
CoveragePart 118 applies to egg producers with 3,000 or more laying hens and contains the rule's flock-size and exemption provisions. 21 CFR 118.1–118.3
Prevention stepsThe rule addresses biosecurity, pest control, cleaning and disinfection, refrigeration, testing, and response measures. The pullet environment is tested when pullets are 14 to 16 weeks old, and notice is required within 10 calendar days in the stated circumstances. 21 CFR 118.4–118.7
RecordsCovered producers must maintain records showing the implementation of applicable Salmonella-prevention measures, including one egg test each month for the life of the flock where required. 21 CFR 118.10
What this source does not answer
- The source does not decide whether a particular egg producer is covered or exempt.
- Flock size, housing, vaccination, testing, and distribution facts require separate review; the guide does not resolve the tension between overlapping operational facts without applying the complete rule.
- State and local egg requirements are outside this federal guide.
What to check next
- How many laying hens are at each farm?
- Which housing and distribution activities occur?
- What biosecurity and testing steps are required?
- Which records must be kept?
Official sources
Official federal authority
21 CFR Part 118 — Egg safety ↗
Production, storage, and transportation of shell eggs