CFR › Title 21 › Part 112 › §112.8121 CFR §112.81Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy link(a)The requirements of this subpart apply when a covered activity takes place in an outdoor area or a partially-enclosed building and when, under the circumstances, there is a reasonable probability that animals will contaminate covered produce.(b)The requirements of this subpart do not apply:(1)When a covered activity takes place in a fully-enclosed building; or(2)To fish used in aquaculture operations.