46 CFR § 64.89 - Cargo pump unit.

---
identifier: "/us/cfr/t46/s64.89"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 64.89 - Cargo pump unit."
title_number: 46
title_name: "Shipping"
section_number: "64.89"
section_name: "Cargo pump unit."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "F"
subchapter_name: "MARINE ENGINEERING"
part_number: "64"
part_name: "MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3306, 3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3."
regulatory_source: "CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted."
cfr_part: "64"
---


# 64.89 Cargo pump unit.

(a) A cargo pump unit that fills or discharges a portable tank must be—

(1) Constructed of materials that are compatible with the product to be pumped; and

(2) Designed to be compatible with the hazard associated with the product to be pumped.

(b) The cargo pump power unit must be—

(1) Diesel;

(2) Hydraulic;

(3) Pneumatic; or

(4) Electric.

(c) The starting system for a cargo pump power unit must be designed to be compatible with the hazard associated with the product to be pumped.

(d) A diesel engine that is used to drive a cargo pump must have a spark arrestor on the exhaust system.