Safety zones may be established around OCS facilities being constructed, maintained, or operated on the Outer Continental Shelf to promote the safety of life and property on the facilities, their appurtenances and attending vessels, and on the adjacent waters within the safety zones. Regulations adopted for safety zones may extend to the prevention or control of specific activities and access by vessels or persons, and include measures to protect the living resources of the sea from harmful agents. The regulations do not encompass the operating equipment or procedures used in the drilling for and production of oil, gas, or other minerals, or the transportation of oil, gas, or other minerals by pipeline except as they relate to the safety of life and property on OCS facilities and on the waters adjacent to OCS facilities or to the protection of the living resources of the sea within a safety zone from harmful agents.

(a) Description. The area within 500-meters of the center point of the positions provided in table 1 is a safety zone:

(b) Definitions. As used in this section, designated representative means a Coast Guard Patrol Commander, including a Coast Guard coxswain, petty officer, or other officer operating a Coast Guard vessel and a Federal, State, and local officer designated by or assisting the First Coast Guard District Commander in the enforcement of the safety zones. Local officer means any officer, agent, or employee of a unit of local government authorized by law or by a local government agency to engage in or supervise the prevention, detection, investigation, or prosecution of any violation of criminal law.

(c) Regulations. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel as defined in 33 CFR 147.20;

(2) A vessel authorized by the First Coast Guard District Commander or a designated representative.

(d) Request for Permission. Persons or vessels seeking to enter the safety zone must request authorization from the First Coast Guard District Commander or a designated representative. If permission is granted, all persons and vessels must comply with lawful instructions of the First Coast Guard District Commander or designated representative via VHF-FM channel 16 or by phone at 866-842-1560 (First Coast Guard District Command Center).

(e) Effective and enforcement periods. This section will be effective from June 1, 2024, through 11:59 p.m. on May 31, 2027. But it will only be enforced during active construction or other instances which may cause a hazard to navigation deemed necessary by the First Coast Guard District Commander. The First Coast Guard District Commander will make notification of the exact dates and times in advance of each enforcement period for the locations above in paragraph (a) of this section to the local maritime community through the Local Notice to Mariners and will issue a Broadcast Notice to Mariners via marine channel 16 (VHF-FM) as soon as practicable in response to an emergency. If the project is completed before May 31, 2027, enforcement of the safety zones will be suspended, and notice given via Local Notice to Mariners. The First Coast Guard District Local Notice to Mariners can be found at: https://www.navcen.uscg.gov.

(a) Description. The area within 500-meters of the center point of the positions provided in the following table 1 to paragraph (a) is a safety zone:

(b) Definitions. As used in this section, designated representative means a Coast Guard Patrol Commander, including a Coast Guard coxswain, petty officer, or other officer operating a Coast Guard vessel and a Federal, State, and local officer designated by or assisting the First Coast Guard District Commander in the enforcement of the safety zones.

(c) Regulations. No vessel may enter or remain in the safety zones described in paragraph (a) of this section except for the following:

(1) An attending vessel as defined in 33 CFR 147.20;

(2) A vessel authorized by the First Coast Guard District Commander or a designated representative.

(d) Request for permission. Persons or vessels seeking to enter the safety zone must request authorization from the First Coast Guard District Commander or a designated representative. If permission is granted, all persons and vessels must comply with lawful instructions of the First Coast Guard District Commander or designated representative via VHF-FM channel 16 or by phone at 617-223-1560 (First Coast Guard District Command Center).

(e) Effective and enforcement periods. This section is effective from June 27, 2023, through 11:59 p.m. on May 31, 2026. But it will only be enforced during active construction or other instances which may cause a hazard to navigation deemed necessary by the First Coast Guard District Commander. The First Coast Guard District Commander will make notification of the exact dates and times in advance of each enforcement period for the locations in paragraph (a) of this section to the local maritime community through the Local Notice to Mariners and will issue a Broadcast Notice to Mariners via marine channel 16 (VHF-FM) as soon as practicable in response to an emergency. If the project is completed before May 31, 2026, enforcement of the safety zones will be suspended, and notice given via Local Notice to Mariners. The First Coast Guard District Local Notice to Mariners can be found at: http://www.navcen.uscg.gov.

(a) Description. The area within 500 meters of the center point of each of the positions provided in the table below is an individual safety zone:

(b) Definitions. As used in this section, designated representative means a Coast Guard Patrol Commander, including a Coast Guard coxswain, petty officer, or other officer operating a Coast Guard vessel and a Federal, State, and local officer designated by or assisting the Fifth Coast Guard District Commander in the enforcement of the safety zones.

(c) Regulations. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel, as defined in 33 CFR 147.20;

(2) A vessel authorized by the Fifth Coast Guard District Commander or a designated representative.

(d) Request for Permission. Persons or vessels seeking to enter the safety zone must request authorization from the Fifth Coast Guard District Commander or a designated representative. If permission is granted, all persons and vessels must comply with lawful instructions of the Fifth Coast Guard District Commander or designated representative via VHF-FM channel 16 or by phone at 757-398-6391 (Fifth Coast Guard District Command Center).

(e) Effective dates and enforcement periods. This section will be in effect from May 1, 2024, through May 1, 2027. Individual safety zones designated in the table in subparagraph (a) will only be subject to enforcement, however, during active construction or other circumstances which may create a hazard to navigation as determined by the Fifth Coast Guard District Commander. The Fifth Coast Guard District Commander will provide notification of the exact dates and times each safety zone is subject to enforcement in advance of each enforcement period for each of the locations listed above, in paragraph (a) of this section. Notifications will be made to the local maritime community through the Local Notice to Mariners and the Coast Guard will issue a Broadcast Notice to Mariners via marine channel 16 (VHF-FM) as soon as practicable in response to an emergency. If the entire project is completed before May 1, 2027, enforcement of the safety zones will be suspended, and notice given via Local Notice to Mariners. The Fifth Coast Guard District Local Notice to Mariners can be found at: https://www.navcen.uscg.gov.

The authority to establish safety zones and to issue and enforce safety zone regulations in accordance with the provisions of this part is delegated to District Commanders.

(a) Whenever it comes to the attention of the District Commander that a safety zone and regulations may be required concerning any OCS facility being constructed, maintained, or operated on the Outer Continental Shelf or its appurtenances and attending vessels, or the adjacent waters, the District Commander may initiate appropriate inquiry to determine whether a safety zone and regulations should be established. In making this determination, the District Commander considers all relevant safety factors, including existing or reasonably foreseeable congestion of vessels, the presence of unusually harmful or hazardous substances, and any obstructions within 500 meters of the OCS facility. If the District Commander determines that the circumstances warrant the establishment of a safety zone and regulations the District Commander takes action as necessary consistent with the provisions of this part.

(b) For purposes of establishing safety zones under this part, OCS facility includes non-mineral energy resource permanent or temporary structures.

(c) Except as provided in paragraph (d) of this section, a safety zone and necessary regulations may be established concerning any OCS facility being constructed, maintained or operated on the Outer Continental Shelf, following publication of a notice of proposed rule making in the Federal Register and after interested parties have been given the opportunity to submit comments. A zone and necessary regulations may be in effect during any period when construction equipment and materials are within 500 meters of the construction site until the removal of all portions of the facility.

(d) A safety zone and necessary regulations may be established without public rule making procedures when the District Commander determined that imminent danger exists with respect to the safety of life and property on an OCS facility constructed, maintained, or operated on the Outer Continental Shelf, its appurtenances and attending vessels or adjacent waters. A safety zone and regulations may be made effective on the date the rule is published in the Federal Register. However, if circumstances require, they may be placed into effect immediately, followed promptly by publication in the Federal Register. The District Commander may utilize, in addition to broadcast Notices to Mariners, Local Notices to Mariners, and Notices to Mariners, newspapers, and broadcasting stations to disseminate information concerning a safety zone and regulations pertaining thereto. The public may comment concerning the establishment of a safety zone or regulations under this paragraph. A safety zone or regulations may be modified or withdrawn, as appropriate, based on the comments received.

(e) Geographic coordinates expressed in terms of latitude or longitude, or both, are not intended for plotting on maps or charts whose referenced horizontal datum is the North American Datum of 1983 (NAD 83), unless such geographic coordinates are expressly labeled NAD 83. Geographic coordinates without the NAD 83 reference may be plotted on maps or charts reference to NAD 83 only after application of the appropriate corrections that are published on the particular map or chart being used.

A safety zone establishment under this part may extend to a maximum distance of 500 meters around the OCS facility measured from each point on its outer edge or from its construction site, but may not interfere with the use of recognized sea lanes essential to navigation.

Unless otherwise stated, the term “attending vessel” refers to any vessel which is operated by the owner or operator of an OCS facility located in the safety zone, which is used for the purpose of carrying supplies, equipment or personnel to or from the facility, which is engaged in construction, maintenance, alteration, or repair of the facility, or which is used for further exploration, production, transfer or storage of natural resources from the seabed beneath the safety zone.

(a) Description. The Boxer Platform is located at position 27°56′48″ N, 90°59′48″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge, not to extend into the adjacent East—West Gulf of Mexico Fairway is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Bullwinkle Platform is located at position 27°53′01″ N, 90°54′04″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Ursa Tension Leg Platform (Ursa TLP) is located at position 28°09′14.497″ N, 89°06′12.790″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The West Delta 143 Platform is located at position 28°39′42″ N, 89°33′05″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge, not to extend into the adjacent Mississippi River Approach Fairway, is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except: (1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Mars Tension Leg Platform (Mars TLP) is located at position 28°10′10.29″ N, 89°13′22.35″ W with two supply boat mooring buoys at positions 28°10′18.12″ N, 89°12′52.08″ W (Northeast) and 28°09′49.62″ N, 89°12′57.48″ W (Southeast). The area within 500 meters (1640.4 feet) from each point on the structure's outer edge and the area within 500 meters (1640.4 feet) of each of the supply boat mooring buoys is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Ram-Powell Tension Leg Platform (Ram-Powell TLP) is located at position 29°03′52.2″ N, 88°05′30″ W with two supply boat mooring buoys at positions 29°03′52.2″ N, 88°05′12.6″ W (Northeast) and 29°03′28.2″ N, 88°05′10.2″ W (Southeast). The area within 500 meters (1640.4 feet) from each point on the structure's outer edge and the area within 500 meters (1640.4 feet) of each of the supply boat mooring buoys is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Auger Tension Leg Platform (Auger TLP) is located at position 27°32′45.4″ N, 92°26′35.09″ W with two supply boat mooring buoys at positions 27°32′38.1″ N, 92°26′04.8″ W (East Buoy) and 27°32′58.14″ N, 92°27′04.92″ W (West Buoy). The area within 500 meters (1640.4 feet) from each point on the structure's outer edge and an area within 500 meters (1640.4 feet) of each of the supply boat mooring buoys is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except:

(1) an attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing or fishing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The ExxonMobil Hoover Floating OCS Facility, Alaminos Canyon Block 25A (AC25A), is located at position 26°56′33″ N, 94°41′19.55″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District

(a) Description. The Sir Douglas Morpeth Tension Leg Platform (Morpeth TLP), Ewing Bank Block 921A (EW 921A), is located at position 28°02′05.28″ N, 90°01′22.12″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Allegheny Tension Leg Platform (Allegheny TLP), Green Canyon Block 254A (GC 254A), is located at position 27°41′29.65″ N, 90°16′31.93″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Brutus Tension Leg Platform (Brutus TLP), Green Canyon Block 158 (GC 158), is located at position 27°47′42.86″ N, 90°38′51.15″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Enchilada Platform, Garden Banks Block 128A (GB 128A), is located at position 27°52′31.31″ N, 91°59′11.09″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge, not to extend into the adjacent East-West Gulf of Mexico Fairway, is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Chevron Genesis Spar, Green Canyon 205A (GC205A), is located at position 27°46′46.365″ N, 90°31′06.553″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Marlin Tension Leg Platform (Marlin TLP), Viasca Knoll, Block 915 (VK 915), is located at position 29°6′27.46″ N, 87°56′37.14″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Matterhorn Tension Leg Platform A (Matterhorn TLP), Mississippi Canyon 243 (MC 243), located at position 28°44′32″ N, 88°39′32″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Holstein, Green Canyon 645 (GC 645), located at position 27°19′17″ N, 90°32′08″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon North American Datum 1983.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Na Kika FDS, Mississippi Canyon 474 “A” (MC 474 “A”), located at position 28°31′14.86″ N, 88°17′19.69″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following: (1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Magnolia TLP, Garden Banks 783 “A” (GB 783 “A”), located at position 27°12′13.86″ N, 92°12′09.36″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Marco Polo Tension Leg Platform, Green Canyon 608 (GC 608), located at position 27°21′43.32″ N, 90°10′53.01″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Mad Dog Truss Spar system is in the deepwater area of the Gulf of Mexico at Green Canyon 782. The facility is located at 27°11′18.124″ N., 90°16′7.363″ W. and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Atlantis Semi-Submersible, Green Canyon 787 (GC 787), located at position 27°11′44″ N, 90°01′37″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. Thunder Horse Semi-Submersible, Mississippi Canyon 778 (MC 778), located at position 28°11′26″ N, 88°29′44″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone. These coordinates are based upon [NAD 83].

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Perdido Regional Host is located at position 26°07′44″ N, 094°53′53″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The BW PIONEER, a Floating Production, Storage and Offloading (FPSO) system, is in the deepwater area of the Gulf of Mexico at Walker Ridge 249. The FPSO can swing in a 360 degree arc around the center point of the turret buoy's swing circle at 26°41′46.25″ N and 090°30′30.16″ W. The area within 500 meters (1640.4 feet) around the stern of the FPSO when it is moored to the turret buoy is a safety zone. If the FPSO detaches from the turret buoy, the area within 500 meters around the center point at 26°41′46.25″ N and 090°30′30.16″ W is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Olympus Tension Leg Platform is in the deepwater area of the Gulf of Mexico in Mississippi Canyon Block 807B. The facility is located at 28° 9′35.59″ N, 89°14′20.86″ W. The area within 500 meters (1640.4 feet) from each point on the structure's outer edge and the area within 500 meters (1640.4 feet) of each of the supply boat mooring buoys is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Jack St. Malo Semi-Sub facility is in the deepwater area of the Gulf of Mexico at Walker Ridge block 718. The facility is located at 26°14′5.94″ N, 91°15′39.99″ W and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Petronius Compliant Tower facility is in the deepwater area of the Gulf of Mexico at Viosca Knoll Block 786. The facility is located at 28°13′44″ N/−87°47′51″ W and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Blind Faith Semi-Sub facility is in the deepwater area of the Gulf of Mexico at Mississippi Canyon Block 650. The facility is located at 28°20′29.5279″ N/−88°15′56.4728″ W and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Tahiti SPAR facility is in the deepwater area of the Gulf of Mexico at Tahiti SPAR. The facility is located at 27°19′33.3″ N/−90°42′50.9″ W and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Gulfstar 1 Spar is in the deepwater area of the Gulf of Mexico at Mississippi Canyon Block 724. The facility is located at 28°14′05.904″ N, 88°59′43.306″ W, and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Big Foot Tension Leg Platform (TLP) construction site is in the deepwater area of the Gulf of Mexico at Walker Ridge 29. The Big Foot TLP construction site outermost points are located at:

NW Corner 26-56-18.85 N, 090-31-26.44 W

NE Corner 26-56-18.85 N, 090-30-53.06 W

SE Corner 26-55-46.76 N, 090-30-53.06 W

SW Corner 26-55-46.76 N, 090-31-26.44 W,

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(a) Description. The Turritella, a Floating Production, Storage and Offloading (FPSO) system is to be installed in the deepwater area of the Gulf of Mexico at Walker Ridge 551. The FPSO can swing in a 360 degree arc around the center point of the turret buoy's swing circle at 26°25′38.74″ N., 90°48′45.34″ W., and the area within 500 meters (1640.4 feet) around the stern of the FPSO when it is moored to the turret buoy is a safety zone. If the FPSO detaches from the turret buoy, the area within 500 meters (1640.4 feet) around the center point at 26°25′38.74″ N., 90°48′45.34″ W. is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Titan SPAR system is in the deepwater area of the Gulf of Mexico at Mississippi Canyon 941. The facility is located at 28°02′02″ N. 89°06′04″ W. and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District.

(a) Description. The Stampede Tension Leg Platform (TLP) system is in the deepwater area of the Gulf of Mexico at Green Canyon Block 468. The facility is located at 27°30′33.3431″ N. 90°33′22.963″ W. (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel, as defined by 33 CFR 147.20;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Eighth Coast Guard District Commander.

(a) Description. The Appomattox Floating Production System (FPS) system is in the deepwater area of the Gulf of Mexico at Mississippi Canyon Block 437. The facility is located at 28°34′25.47″ N 87°56′03.11″ W (NAD 83), and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except the following:

(1) An attending vessel, as defined by 33 CFR 147.20;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Eighth Coast Guard District Commander or a designated representative.

(a) Description. The Constitution Spar is in the deepwater area of the Gulf of Mexico at Green Canyon Block 680. The facility is located at 27°17′31.92″ N, 90°58′4.8″ W, (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in the safety zone described in paragraph (a) of this section except for the following:

(1) An attending vessel, as defined in 147.20

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(c) Requests for Permission. Persons or vessels requiring authorization to enter the safety zone described in paragraph (a) of this section must request permission from the Commander, Eighth Coast Guard District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

(a) Description. The Lucius Spar in the deepwater area of the Gulf of Mexico at Keathley Canyon 875. The facility is located at: 26°7′55.0632″ N, 92°2′24.2982″ W (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel, as defined in 147.20

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(c) Requests for permission. Persons or vessels requiring authorization to enter the safety zone must request permission from the Commander, Eighth Coast Guard District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

(a) Description. The Horn Mountain Spar is in the deepwater area of the Gulf of Mexico at Mississippi Canyon 127. The facility is located at: 28°51′57.5994″ N, 88°3′22.32″ W, (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facililty structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel, as defined in 147.20;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(2) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(c) Requests for permission. Persons or vessels requiring authorization to enter the safety zone must request permission from the Commander, Eighth Coast Guard District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

(a) Description. The Heidelberg Spar in the deepwater area of the Gulf of Mexico at Green Canyon. The facility is located at: 27°6′41.0394″ N, 90°45′50.3994″ W (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel, as defined in § 147.20;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(c) Requests for permission. Persons or vessels requiring authorization to enter the safety zone must request permission from the Commander, Eighth Coast Guard District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

(a) Description. The Vito FPS is in the deepwater area of the Gulf of Mexico at Mississippi Canyon Block 939. The facility is located at 28°01′32.325″ N, 89°12′33.254″ W, (NAD 83) and the area within 500 meters (1640.4 feet) from each point on the facility structure's outer edge is a safety zone.

(b) Regulation. No vessel may enter or remain in this safety zone except for the following:

(1) An attending vessel, as defined in 147.20;

(2) A vessel under 100 feet in length overall not engaged in towing; or

(3) A vessel authorized by the Commander, Eighth Coast Guard District or a designated representative.

(c) Requests for permission. Persons or vessels requiring authorization to enter the safety zone must request permission from the Commander, Eighth Coast Guard District or a designated representative. If permission is granted, all persons and vessels shall comply with the instructions of the Commander or designated representative.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-10′-47″ N, 119°-28′-05″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-07′-02″ N, 119°-16′-35″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The areas within a line 500 meters from each point on the outer edge of each structure. The structures are approximately 120 meters apart. The position of the center of each structure is: Platform Ellen, 33°-34′-57″ N, 118°-07′-42″ W; and Platform Elly, 33°-35′-00″ N, 118°-07′-40″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel serving either structure, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-23′-27″ N, 120°-07′-14″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except for the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 1108 meters for the center of the mooring. The position of the center of the mooring is 34°-24′-19″ N 120°-06′00″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-10′-56″ N. 119°-25′-07″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except for the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 33°-35′-45″ N. 118°-08′-27″ W.

(b) Regulations: No vessel may enter or remain in this safety zone except for the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34-27-19 N, 120-38-47 W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34-28-09.5 N, 120-40-46.1 W.

(b) Regulations: No vessel may enter or remain in this safety zone except for the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 33-33-50 N, 118-07-00 W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34-29-42 N, 120-42-08 W.

(b) Regulations: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-07′-30″ N, 119°-24′-01″ W.

(b) Regulation: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel, (2) a vessel under 100 feet in length overall not engaged in towing, or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-22′-36″ N, 120°-10′-03″ W.

(b) Regulation: No vessel may enter or remain in this safety zone except the following: (1) an attending vessel; (2) a vessel under 100 feet in length overall not engaged in towing; or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-21′-01″ N, 120°-16′-45″ W.

(b) Regulation: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel; (2) a vessel under 100 feet in length overall not engaged in towing; or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.

(a) Description: The area within a line 500 meters from each point on the structure's outer edge. The position of the center of the structure is 34°-36′-37.5″ N, 120°-43′-46″ W.

(b) Regulation: No vessel may enter or remain in this safety zone except the following: (1) An attending vessel; (2) a vessel under 100 feet in length overall not engaged in towing; or (3) a vessel authorized by the Commander, Eleventh Coast Guard District.