Outer Continental Shelf National Center of Expertise (OCSNCOE)

Policy and Guidance - Mobile Offshore Drilling Unit (MODU)

This page has the following content applicable to MODUs (click on item to be taken directly to that section):
  1) USCG Marine Safety Manual (MSM), Vol II;
  2) Overview of U.S. and Foreign-Flagged inspection/examination requirements;
  3) National Policy;
  4) District Eight (Gulf of Mexico) Policy;
  5) Navigation and Vessel Inspection Circulars (NVICs); and
  6) MODU Applicability Flowchart.


Part 1: MSM

The following chapters of the Marine Safety Manual, Volume II: Section G - OCS Activities are applicable to MODUs:
  ○  Chapter 1, Regulations, Policy and Guidance for a Unit Conducting an OCS Activity,
  ○  Chapter 2, Procedures Applicable to U.S. MODUs, and
  ○  Chapter 3, Procedures Applicable to Foreign MODUs.


Part 2: Overview of U.S. and Foreign Flagged inspection/examination requirements

U.S. Flagged MODUs are inspected to applicable portions of 33 CFR Subchapter N (Outer Continental Shelf Activities) and 46 CFR Subchapters I-A (Mobile Offshore Drilling Units), F (Marine Engineering), J (Electrical Engineering) & S (Subdivision and Stability). Note that additional portions of 33 CFR relating to Navigation and Pollution and 46 CFR relating to licensing/manning, lifesaving/firefighting type approvals and dangerous cargoes also apply.

New: Foreign-Flagged MODUs engaged in OCS activities must comply with one-of-three 'options' for "Design and Equipment" (see 33 CFR 143.207(a), (b) and (c)) AND one-of-three 'options' for "Operations" (see 33 CFR 146.205(a), (b) and (c)). Additional details related to these examination options and applicable regulatory cites are available by clicking on the following links (opens a pdf in a separate window):

  ○  Option A MODUs - examined to specific parts of the U.S. MODU regulations
  ○  Option B MODUs - PANAMA (Flag State equivalency)
  ○  Option B MODUs - MARSHALL ISLANDS (Flag State equivalency)
  ○  Option C MODUs - examined to the MODU Code, 1979
  ○  Option C MODUs - examined to the 1989 & 2009 MODU Codes ( note that 33 CFR 143.207(c) and §146.205(c) both reference the Code for Construction and Equipment of Mobile Offshore Drilling Units (1979 MODU Code), but the 1989 and 2009 MODU Codes have been accepted as equivalencies under this examination option)


Part 3: National Policy

Policy Letters that apply to MODUs are listed in the tables below, grouped by issuing authority and ordered from newest to oldest (by policy number). Click on the policy number to open the document.

National Policy
Office Policy Number Date Issued Subject

Office of Commercial Vessel Compliance
CG-CVC
18-04 03Apr2018 Guidance on Implementation of New Standards for Fire Protection, Detection and Extinguishing Equipment
CG-CVC 17-09 27Nov2017 Issuance and Acceptance of Electronic Certificates
CG-CVC 13-02 05May2013 MARPOL Annex VI International Energy Efficiency (IEE) Certificate Implementation Guidance
CG-CVC 13-01 26Feb2013 Interim Guidance for Revised MARPOL Annex V Implementation
CG-CVC 12-08 15Oct2012 Guidance Implementing the International Convention on the Control of Harmful Ant-Fouling Systems on Ships (CANCELLED, see MSM Vol II; included here for historical reference purposes only)
CG-CVC 12-05 11Oct2012 Hours of Rest – Implementation of the 2010 Amendments to the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers, 1978
CG-CVC 12-04 25Jul2012 Guidelines for Compliance and Enforcement of the Emission Control Areas Established within the United States Jurisdiction as Designated in MARPOL Annex VI Regulation 14
CG-543 11-06 08Jun2011 Risk-Based Targeting of Foreign Flagged Mobile Offshore Drilling Units (MODUs) (CANCELLED, see MSM Vol II; included here for historical reference purposes only)
CG-543
11-04 13Apr2011 Compliance Verification of Alternative Security Program for MTSA Regulated Vessels and Facilities
CG-543 11-01 11Feb2011 Guidelines for Coast Guard Evaluations of Compliance with the U.S. Environmental Protection Agency’s (EPA) Vessel General Permit (VGP) for Discharges Incidental to the Normal Operation of Vessels
CG-543 10-05 26Nov2010 Electronic Navigation Publications onboard U.S. Vessels
CG-543 10-01 04Mar2010 Use of Single Voyage Load Line Authorizations
CG-543 09-02 12Aug2009 Industry Guidelines for Requesting Alternate Planning Criteria Approval, One Time Waivers and Interim Operating Authorization
CG-543 09-01 04Feb2009 Guidelines for Ensuring Compliance with Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL) 73/78; Prevention of Air Pollution from Ships
CG-3PCV 06-09 22Dec2006 Implementation of the International Convention for the Prevention of Pollution from Ships (MARPOL) 73/78; Annex I Revised
G-MOC 05-02 03May2005 Guidelines for Interim Voluntary Implementation of Annex VI to the International Convention for the Prevention of Pollution from Ships (MARPOL) 73/78; Prevention of Air Pollution from Ships
G-MOC 04-13, Rev-1 24Mar2005 Guidelines for the Inspection of Oily Water Monitor and Separator Systems
G-MOC 04-12 23Dec2004 Issuing International Ship Security Certificates (ISSC) to Vessels not Subject to SOLAS
G-MOC 04-06 10Aug2004 Guidance for Ballast Water Regulations
G-MOC 04-05 29Mar2004 Guidance when Considering Exemptions from the SOLAS Requirement to Carry Voyage Data Recorders (VDR)
G-MOC 04-02 17May2004 Global Maritime Distress and Safety System (GMDSS) Operator Requirements
G-MOC 03-03 08Sep2003 Guidelines for Equivalent Compliance with (Revised) MARPOL 73/78 Annex IV (Sewage)
G-MOC 02-01 08Feb2002 Regular Compliment Crew Determinations for Vessels Engaged in OCS Activities (CANCELLED, see MSM Vol II; included here for historical reference purposes only)
G-MOC 01-03 18Oct2001 Pressure Vessel Internal Examination and Relief Valve Testing for Foreign Flag MODUs Operating on the Outer Continental Shelf (OCS) (CANCELLED, see MSM Vol II; included here for historical reference purposes only)
G-MOC 01-01 13Apr2001 Cargo Ship Fixed Fire-Extinguishing System SOLAS Exemptions
G-MOC 1-99 15Dec1998 Guidance on Port State Control ISM Code Enforcement

Office of Design and Engineering Standards
CG-ENG 01-18 01May2018 Equivalency Determination – FRP Gratings Conforming to ASTM F3059
CG-ENG 01-16
29Apr2016 Portable Accommodation Module (PAM) Guidance
CG-ENG 03-15 03Sep2015 Acceptance of CAP-437, Standards for Offshore Helicopter Landing Areas
CG-ENG 02-14
30Apr2014 Approval of Equivalencies to the Requirements for Odorizing Units on Fixed Carbon Dioxide Fire Extinguishing Systems
CG-ENG 01-14 04Mar2014 Lifeboat Release Mechanisms: Policy on Implementation of New SOLAS Regulation III/1.5 and IMO Circular MSC.1/Circ.1392
CG-ENG 05-12 07Sep2012 Policy on the Implementation of Additional Personnel Safety Requirements for Carbon Dioxide Fire Suppression Systems
CG-ENG 02-12 07May2012 Acceptance of the 2009 MODU Code

National Maritime Center
NMC 05-01 06Mar2001 Lifeboatmen and Proficiency in Survival Craft (PSC) Qualifications for Service on Vessels not Equipped with Lifeboats

 

 


Part 4: District 8 (Gulf of Mexico) Policy

District Eight (D8) Policy
Policy Number Date Issued Subject
04-2016 31Oct2016 Lifesaving Inspection and Emergency Evacuation Drills on Manned Facilities (Including Mobile Offshore Drilling Units) on the Outer Continental Shelf (OCS)
03-2016 02Jun2016 Interim Coast Guard Eighth District Outer Continental Shelf (OCS) Risk-Based Inspection Resource Allocation Methodology
01-2015 14Sep2015 Outer Continental Shelf (OCS) Emergency Evacuation Plan (EEP) Approvals
04-2003
30Sep2003 Outer Continental Shelf (OCS) Emergency Evacuation Plan (EEP) Approvals (CANCELLED 11Jul2014 by D8 OCS Memo, incorporated into MSM Vol II, Sec G; included here for historical reference purposes only)
01-2002 25Oct2002 Delegation of Authority to OCMIs to Grant Drydock Extensions
99-19 16Sep1999 MODU Lifeboat Release Gear Overload Tests (alternate testing apparatus)
99-17 24Aug1999 MODU Berthing Sizes
07-1999 14Jul1999 Loadline Extension Authority up to 150 Days for Approved Assignment Authority
99-06 03Mar1999 Issuing COI Amendments (CG-858)
09-1998 25Sep1998 Detainment of Vessels after a Serious Marine Incident
98-12 11Jun1998 Lifeboat Release Gear Tests
04-1998 06Apr1998 Drug and Alcohol Testing
97-17 30Jun1997 Manning Requirements for Non-Self Propelled MODUs
08-1997 13Aug1997 Testing of Liferaft Hydrostatic Release (CANCELLED 11Jul2014 by D8 OCS Memo, incorporated into MSM Vol II; included here for historical reference purposes only)
97-08 21Apr1997 Accepting Classification Society Exams of Selected MODU Structures
97-05 10Mar1997 STCW Applicability to MODUs
11-1995 20Nov1995 Eighth District Drug and Alcohol Policy
08-1989 22Aug1989 MODU Tailshaft Drawing Intervals

 


Part 5: Navigation and Vessel Inspection Circulars (NVICs)

NVICs that apply to MODUs are listed in the table below, ordered from newest to oldest (by NVIC number). Click on the NVIC number to open the document. ALL NVICs can be found on the Official NVIC Page.

Navigation and Vessel Inspection Circulars (NVICs)
NVIC
Number
Date Issued Subject
2000s
9-01 30Nov2001 Guidance on STCW Quality Standards Systems (QSS) for Merchant Mariner Courses or Training Programs
6-01 25May2001 Protective Equipment Required for Firefighter’s Outfits
09-00, CH-1
10Feb2005 CH-1 to NVIC 09-00; Carbon Dioxide Fire Extinguishing System Safety
7-00 04Aug2000 Clarification of the Application of the International Convention on Standards of Training, Certification and Watchkeeping for Seafarers (STCW), 1978, as amended, to Vessels less than 200 Gross Register Tons (GRT)
3-00 11May2000 Manning and Training Guidance for Fast Rescue Boats on United States Vessels
1990s
10-99 10Sep1999 Interpretations of SOLAS Chapter II-2
5-99, CH-1 13Oct2006 Guidance Regarding Voluntary Compliance with the International Management Code for the Safe Operation of Ships and for Pollution Prevention (International Safety management (ISM) Code)
3-99 29Jan1999 Global Maritime Distress and Safety System (GMDSS) and Emergency Position Indicating Radio Beacon (EPIRB) Equipment Requirements for Commercial Vessels
9-97, CH-1 02Jul2010 CH-1 to NVIC 9-97, Guide to Structural Fire Protection
3-97 - Stability Related Review Performed by the American Bureau of Shipping for U.S. Flag Vessels
3-95 19Jun1995 Periodic Inspection and Testing of Fixed Halon Fire Fighting Equipment aboard Merchant Vessels
02-95, CH-3 02Oct2018 The Alternate Compliance Program (ACP)
9-94 23Nov1994 Guidelines for Training and Certification in the Use of Marine Radar
6-94, CH-1 - Guidance for Issuing International Oil Pollution Prevention (IOPP) Certificates under Annex I of the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto (MARPOL 73/78)
2-94 15Mar1994 Guidance Regarding Voluntary Compliance with the International Management Code for the Safe Operation of Ships and for Pollution Prevention (CANCELLED, see MSM Vol II; included here for historical reference purposes only)
1-94 21Jan1994 Marking of Life Preservers and PFDs
11-93, CH-3 21Nov2003 CH-3 to NVIC 11-93, Applicability of Tonnage Measurement Systems to U.S. Flag Vessels
13-92 15Dec1992 Captain of the Port Zone Boundaries
11-92 23Oct1992 Guidance for Acceptance of the National Board of Boiler and Pressure Vessel Inspectors (NBBI) National Board Inspection Code (NBIC) for Repairs and Alterations to Boilers and Pressure Vessels
10-92, CH-2 04May2006 CH-2 to NVIC 10-92, Coast Guard Recognition of Registered Professional Engineer Certification of Compliance with Coast Guard Requirements
3-92 24Feb1992 Recommended Program for Protection of Merchant Mariners from Occupational Health Problems
2-92 04Feb1992 Survival Equipment for Lifeboats and Liferafts
11-91 16Jul1991 Ocean Tow of Jackup Drilling Units
1980s
7-89 08Jan1990 Maneuvering Information
4-89 27Nov1989 Introduction to Human Factors Engineering
3-89 07Sep1989 Guidelines for the Presentation of Stability Information for Operating Personnel
2-89 14Aug1989 Guide for Electrical Installations on Merchant Vessels and Mobile Offshore Drilling Units
1-89 15Mar1989 Underwater Survey Guidance
3-88, CH-1 28Jan2000 CH-1 to NVIC 3-88, Issuance of Letters of Compliance to Foreign Documented Mobile Offshore Drilling Units Operating on the Outer Continental Shelf of the United States (CANCELLED, see MSM Vol II, Sec G; included here for historical reference purposes only)
Original NVIC 3-88 (cancelled by CH-1) can be viewed here.
6-87 21Sep1987 Recommended Procedures for Control of Asbestos and Other Respiratory Hazards on board Merchant Vessels, Outer Continental Shelf (OCS) Facilities and Deepwater Ports
11-86 05Sep1986 Guidelines Governing the Use of Fiberglass Pipe (FGP) on Coast Guard Inspected Vessels
7-86 30Apr1986 Information on the Adequacy and Currency of Nautical Charts
4-86 28Mar1986 Hydraulic Release Units for Liferafts, Life Floats and Buoyant Apparatus and Alternate Float-Free Arrangements
1-86 15Jan1986 Shipment and Discharge of Seamen
4-85 29May1985 Recalls and Other Corrective Measures for Lifesaving Equipment
11-84 20Dec1984 Guidelines for New Construction or Major Modification of U.S. Flag Vessels in Foreign Shipyards
8-84 23Aug1984 Recommendations for the Submittal of Merchant Vessel Plans and Specifications
7-84 07Aug1984 Outer Continental Shelf (OCS) Citizenship Requirements; Exemptions from
4-84 24Apr1984 Equivalent Determination for Existing, Installed Oil-Water Separators which Have Not Received U.S. Coast Guard Approval
2-84 06Apr1984 Amendments to the 1974 Safety of Life at Sea (SOLAS) Treaty
1-84 03Apr1984 Lack of Topstitching on Some Type I Personal Flotation Devices (PFDs)
10-83 29Sep1983 Stability Approval and the Issuance of Stability Letters
9-83 14Sep1983 Coast Guard Guidance Regarding Requirement for Charts and Publications
8-83 09Aug1983 Guidance for Compliance with Annex I of the International Convention for the Prevention of Pollution from Ships, 1973, as modified by the Protocol of 1978 relating thereto (MARPOL 73/78)
5-83 28Apr1983 Unified Interpretations of the International Convention on Load Lines, 1966
10-82, CH-2 18Sep1989 CH-2 to NVIC 10-82, Acceptance of Plan Review and Inspection Tasks Performed by the American Bureau of Shipping (ABS) for New Construction or Major Modification of U.S. Flag Vessels
7-82 13Apr1982 Sample Format of Vessel or Facility Station Bill
10-81, CH-1 05Oct1981 Coast Guard Certification and Inspection of Certain Categories of Existing Vessels
9-81 10Aug1981 Coast Guard Guidance Regarding Shipboard Helicopter Facilities
6-81 18Jun1981 Lifeboat Weight Tests
7-80 02Apr1980 Use of Fire Detection Systems which are Not approved under 46 CFR 161.002
2-80 07Feb1980 Poured-Metal Socket Connections for Lifeboat Falls
1-80 14Jan1980 Inspection of Viking On-Load Release Gear on Watercraft America
1970s
4-78, CH-1 15Dec1978 Inspection and Certification of Existing Mobile Offshore Drilling Units
5-77 20Dec1977 Inspection of Hydraulic Starting Systems for Lifeboats and Survival Capsules
7-74 06Dec1974 Oil-Water Separators; Acceptance of
6-72, CH-1 22Aug1972 Guide to Fixed Fire-Fighting Equipment aboard Merchant Vessels
6-70 23Aug1970 Fixed Fire Extinguishing Systems for Use in Galley Ventilating Equipment
1960s
12-69 12Dec1969 Special Examination in lieu of Drydocking for Large Mobile Drilling Units
1-69 08Jan1969 Automated Main and Auxiliary Machinery
8-68 15Nov1968 Classification of Vessels as Self-Propelled
7-68 28Oct1968 Notes on Inspection and Repair of Steel Hulls
3-68 21Mar1968 Tensile Fasteners
3-67 17May1967 Alteration of Ship’s Structure which May Affect the Adequacy of Installed Safety Devices
1-66 25Jan1966 Requirements for Hull Structural Steel - Structural Continuity
2-63 24Jan1963 Guide for Inspection and Repair of Lifesaving Equipment
2-62 29Jan1962 Watertight Bulkheads in All Inspected Vessels, Maintenance of Watertight Integrity

Part 6: MODU Applicability Flowchart

For a pdf of the applicability flowchart displayed below, click here.