---
kind: "section"
citation: "14 C.F.R. § 23.2310"
title: "14"
number: "23.2310"
heading: "Buoyancy for seaplanes and amphibians."
url: "https://uscodex.org/cfr/14/23.2310"
---

# §23.2310. Buoyancy for seaplanes and amphibians.


Airplanes intended for operations on water, must—

- (a) Provide buoyancy of 80 percent in excess of the buoyancy required to support the maximum weight of the airplane in fresh water; and
- (b) Have sufficient margin so the airplane will stay afloat at rest in calm water without capsizing in case of a likely float or hull flooding.

## Notes

### Authority

Authority: 49 U.S.C. 106(f), 106(g), 40113, 44701-44702, 44704, Pub. L. 113-53, 127 Stat. 584 (49 U.S.C. 44704) note.

### Source

Source: Doc. No. FAA-2015-1621, Amdt. 23-64, 81 FR 96689, Dec. 30, 2016, unless otherwise noted.