33 CFR § 143.201 - Existing MODUs exempted from new design requirements.
---
identifier: "/us/cfr/t33/s143.201"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 143.201 - Existing MODUs exempted from new design requirements."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "143.201"
section_name: "Existing MODUs exempted from new design requirements."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "N"
subchapter_name: "OUTER CONTINENTAL SHELF ACTIVITIES"
part_number: "143"
part_name: "DESIGN AND EQUIPMENT"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "43 U.S.C. 1333(d)(1), 1348(c), 1356; 49 CFR 1.46; section 143.210 is also issued under 14 U.S.C. 946 and 31 U.S.C. 9701."
regulatory_source: "CGD 78-160, 47 FR 9382, Mar. 4, 1982, unless otherwise noted."
cfr_part: "143"
---
# 143.201 Existing MODUs exempted from new design requirements.
Any mobile offshore drilling unit built before, under construction on, or contracted for prior to April 5, 1982 is not required to meet the design requirements of this subpart until the unit is rebuilt. Until rebuilt, the unit must continue to comply with the design requirements applicable to the unit on April 4, 1982.
[CGD 78-160, 47 FR 11011, Mar. 15, 1982]