---
kind: "section"
citation: "46 C.F.R. § 197.342"
title: "46"
number: "197.342"
heading: "Buoyancy-changing devices."
url: "https://uscodex.org/cfr/46/197.342"
---

# §197.342. Buoyancy-changing devices.

- (a) A dry suit or other buoyancy-changing device not directly connected to the exhaust valve of the helmet or mask must have an independent exhaust valve.
- (b) When used for SCUBA diving, a buoyancy-changing device must have an inflation source separate from the breathing gas supply.

## Notes

### Authority

Authority: 33 U.S.C. 1509; 43 U.S.C. 1333; 46 U.S.C. 3306, 3703, 6101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 76-009, 43 FR 53683, Nov. 16, 1978, unless otherwise noted.