---
kind: "section"
citation: "46 C.F.R. § 154.1135"
title: "46"
number: "154.1135"
heading: "Pumps."
url: "https://uscodex.org/cfr/46/154.1135"
---

# §154.1135. Pumps.

- (a) Water to the water spray system must be supplied by:
  - (1) A pump that is only for the use of the system;
  - (2) A fire pump; or
  - (3) **A pump specially approved by the Commandant (CG-OES).**
- (b) Operation of a water spray system must not interfere with simultaneous operation of the fire main system at its required capacity. There must be a valved cross-connection between the two systems.
- (c) Except as allowed under [paragraph (d)](#d) of this section, each pump for each water spray system must have the capacity to simultaneously supply all areas named in [§ 154.1110](/cfr/46/154.1110.md).
- (d) If the water spray system is divided into sections, the pump under [paragraph (a)](#a) of this section must have the capacity to simultaneously supply the required discharge density under [§ 154.1115(a)](/cfr/46/154.1115.md?p=a) for:
  - (1) The areas in §§ [154.1110(f) through (h)](/cfr/46/154.1110.md?p=f..h) and [154.1115(b)](/cfr/46/154.1115.md?p=b); and
  - (2) The largest section that includes the required protection under § [154.1110 (a)](/cfr/46/154.1110.md?p=a), [(b)](/cfr/46/154.1110.md?p=b), and [(c)](/cfr/46/154.1110.md?p=c).

## Notes

### Amendments

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]

### 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.

### Amendments

[CGD 74-289, 44 FR 26009, May 3, 1979, as amended by CGD 82-063b, 48 FR 4782, Feb. 3, 1983]