46 CFR § 31.01-20 - Application for inspection of a new tank vessel or conversion of a vessel to a tank vessel—TB/ALL.

---
identifier: "/us/cfr/t46/s31.01-20"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 31.01-20 - Application for inspection of a new tank vessel or conversion of a vessel to a tank vessel—TB/ALL."
title_number: 46
title_name: "Shipping"
section_number: "31.01-20"
section_name: "Application for inspection of a new tank vessel or conversion of a vessel to a tank vessel—TB/ALL."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "D"
subchapter_name: "TANK VESSELS"
part_number: "31"
part_name: "INSPECTION AND CERTIFICATION"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "33 U.S.C. 1321(j); 46 U.S.C. 2103, 3205, 3306, 3307, 3703; 46 U.S.C. Chapter 701; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4. Section 31.10-21 also issued under the authority of Sect. 4109, Pub. L. 101-380, 104 Stat. 515."
regulatory_source: "CGFR 65-50, 30 FR 16662, Dec. 30, 1965, unless otherwise noted."
cfr_part: "31"
---


# 31.01-20 Application for inspection of a new tank vessel or conversion of a vessel to a tank vessel—TB/ALL.

Prior to the commencement of the construction of any new tank vessel, or prior to the commencement of the conversion of any vessel to a tank vessel, application for the approval of contract plans and specifications and for a certificate of inspection shall be made in writing to the Coast Guard and no such construction or conversion shall be proceeded with until such approval is granted. (See § 31.10-1.)