---
kind: "section"
citation: "21 C.F.R. § 112.133"
title: "21"
number: "112.133"
heading: "What requirements apply to plumbing?"
url: "https://uscodex.org/cfr/21/112.133"
---

# §112.133. What requirements apply to plumbing?


The plumbing must be of an adequate size and design and be adequately installed and maintained to:

- (a) Distribute water under pressure as needed, in sufficient quantities, in all areas where used for covered activities, for sanitary operations, or for hand-washing and toilet facilities;
- (b) Properly convey sewage and liquid disposable waste;
- (c) Avoid being a source of contamination to covered produce, food contact surfaces, areas used for a covered activity, or agricultural water sources; and
- (d) Not allow backflow from, or cross connection between, piping systems that discharge waste water or sewage and piping systems that carry water used for a covered activity, for sanitary operations, or for use in hand-washing facilities.

## Notes

### Authority

Authority: 21 U.S.C. 321, 331, 342, 350h, 371; 42 U.S.C. 243, 264, 271.

### Source

Source: 80 FR 74547, Nov. 27, 2015, unless otherwise noted.