46 CFR § 154.1115 - Discharge.

---
identifier: "/us/cfr/t46/s154.1115"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 154.1115 - Discharge."
title_number: 46
title_name: "Shipping"
section_number: "154.1115"
section_name: "Discharge."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "154"
part_name: "SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted."
cfr_part: "154"
---


# 154.1115 Discharge.

(a) The discharge density of each water spray system must be at least:

(1) 10000 cm
<sup>3</sup>/m
<sup>2</sup>/min. (0.25 gpm/ft.
<sup>2</sup>) over each horizontal surface; and

(2) 4000 cm
<sup>3</sup>/m
<sup>2</sup>/min. (0.10 gpm/ft.
<sup>2</sup>) against vertical surface, including the water rundown.

(b) The water spray protection under § 154.1110 (d) and (e) must cover an area in a horizontal plane extending at least 0.5 m (19 in.) in each direction from the pipes, fittings, and valves, or the area of the drip tray, whichever is greater.