---identifier: "/us/cfr/t33/s157.126"source: "ecfr"legal_status: "authoritative_unofficial"title: "33 CFR § 157.126 - Pumps."title_number: 33title_name: "Navigation and Navigable Waters"section_number: "157.126"section_name: "Pumps."chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"subchapter_number: "O"subchapter_name: "POLLUTION"part_number: "157"part_name: "RULES FOR THE PROTECTION OF THE MARINE ENVIRONMENT RELATING TO TANK VESSELS CARRYING OIL IN BULK"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546."regulatory_source: "CGD 74-32, 40 FR 48283, Oct. 14, 1975, unless otherwise noted."cfr_part: "157"---
Identifier
/us/cfr/t33/s157.126
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Coast Guard, Department of Homeland Security
Authority
33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L.... 33 U.S.C. 1903; 46 U.S.C. 3703, 3703a (note); Department of Homeland Security Delegation No. 0170.1. Subparts G, H, and I are also issued under section 4115(b), Pub. L. 101-380, 104 Stat. 520; Pub. L. 104-55, 109 Stat. 546.
# 157.126 Pumps.(a) Crude oil must be supplied to the COW machines by COW system pumps or cargo pumps.(b) The pumps under paragraph (a) of this section must be designed and arranged with sufficient capacity to meet the following:(1) A sufficient pressure and flow is supplied to allow the simultaneous operation of those COW machines designed to operate simultaneously.(2) If an eductor is used for tank stripping, enough driving fluid is provided by the pumps to allow the eductor to meet § 157.128(a).(c) There must be means on the tank vessel to maintain the pressure under paragraph (b) of this section when shore terminal back pressure is less than the pressure under paragraph (b) of this section.(d) The COW system must have two or more pumps that are capable of supplying oil to the COW machines.(e) The COW system must be designed to meet the requirements of this subpart with any one pump not operating.