33 CFR § 146.203 - Requirements for U.S. and undocumented MODUs.

---
identifier: "/us/cfr/t33/s146.203"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "33 CFR § 146.203 - Requirements for U.S. and undocumented MODUs."
title_number: 33
title_name: "Navigation and Navigable Waters"
section_number: "146.203"
section_name: "Requirements for U.S. and undocumented MODUs."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "N"
subchapter_name: "OUTER CONTINENTAL SHELF ACTIVITIES"
part_number: "146"
part_name: "OPERATIONS"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "43 U.S.C. 1333, 1348, 1350, 1356; 46 U.S.C. 70001, 70116; Sec. 109, Public Law No. 109-347, 120 Stat. 1884; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 78-160, 47 FR 9383, Mar. 4, 1982, unless otherwise noted."
cfr_part: "146"
---


# 146.203 Requirements for U.S. and undocumented MODUs.

Each mobile offshore drilling unit documented under the laws of the United States and each mobile offshore drilling unit that is not documented under the laws of any nation must comply with the operating standards of 46 CFR part 109 when engaged in OCS activities.