---
kind: "section"
citation: "46 C.F.R. § 154.1145"
title: "46"
number: "154.1145"
heading: "Dry chemical supply."
url: "https://uscodex.org/cfr/46/154.1145"
---

# §154.1145. Dry chemical supply.

- (a) **A vessel with a cargo carrying capacity less that 1000 m 3 (35,300 ft.** 3) must have at least one self-contained dry chemical storage unit for the cargo area with an independent inert gas pressurizing source adjacent to each unit.
- (b) **A vessel with a cargo carrying capacity of 1000 m 3 (35,300 ft.** 3) or more must have at least two self-contained dry chemical storage units for the cargo area with an independent inert gas pressurizing source adjacent to each unit.
- (c) A vessel with bow and stern loading and discharge areas must have at least one self-contained dry chemical storage unit with an independent inert gas pressurizing source adjacent to the unit for each area.
- (d) Each dry chemical storage unit and associated piping must be designed for:
  - (1) Sequential discharge of each hose line and each monitor for 45 seconds; and
  - (2) **Simultaneous discharge of all hose lines and monitors for 45 seconds.**
- (e) Each fully charged dry chemical storage unit must have the greater of the following:
  - (1) Enough dry chemical to provide for sequential discharge of each attached hose and monitor for 45 seconds.
  - (2) Enough dry chemical to provide for simultaneous discharge of all attached hoses and monitors for 45 seconds.

## Notes

### Authority

Authority: 46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1.

### Source

Source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.