---
kind: "section"
citation: "14 C.F.R. § 33.31"
title: "14"
number: "33.31"
heading: "Applicability."
url: "https://uscodex.org/cfr/14/33.31"
---

# §33.31. Applicability.


This subpart prescribes additional design and construction requirements for reciprocating aircraft engines.


## Notes

### Authority

Authority: 49 U.S.C. 106(g), 40113, 44701, 44702, 44704.

### Source

Source: Docket No. 3025, 29 FR 7453, June 10, 1964, unless otherwise noted.