46 CFR § 64.77 - Inspection and test.
---
identifier: "/us/cfr/t46/s64.77"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 64.77 - Inspection and test."
title_number: 46
title_name: "Shipping"
section_number: "64.77"
section_name: "Inspection and test."
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"
---
# 64.77 Inspection and test.
For the handling and stowage requirements in § 98.30-3 of this chapter, each MPT must pass the following inspections and tests conducted by the owner or the owner's representative:
(a) Pressure relief and vacuum relief devices must be inspected one time or more during each 12 month period of service in accordance with § 64.79.
(b) An MPT must be inspected during the 30 months before any month in which it is in service in accordance with § 64.81.
(c) An MPT must pass a hydrostatic test in accordance with § 64.83 during the 60 months before any month in which it is in service.
(d) After each welded repair, an MPT must pass a hydrostatic test in accordance with § 64.83.
[CGD 73-172, 39 FR 22950, June 25, 1974, as amended by CGD 84-043, 55 FR 37410, Sept. 11, 1990]