(a) The regulations in this part prescribe the obstruction lights and fog signals to be operated as privately maintained maritime aids to navigation on the artificial islands and structures which are erected on or over the seabed and subsoil of the outer Continental Shelf and in the waters under the jurisdiction of the United States, for the purpose of exploring for, developing, removing and transporting resources therefrom.

(b) Subpart 66.01 in Part 66 of this subchapter shall be applicable to all private aids to navigation erected on or over the outer Continental Shelf in the same manner and to the same extent as they are applicable to private aids to navigation established, erected, or maintained in the waters under the jurisdiction of the United States.

§ 67.01-5 Definitions.

(a) Structures. The term "structures" as used in this part shall include all fixed structures, temporary or permanent, for which a Corps of Engineers' permit is issued. It shall include, but is not necessarily limited to, all drilling platforms, production platforms, quarters platforms, pipe line riser platforms, manifold platforms, loading platforms, boat landings, caissons, well protective structures, tank battery barges submerged on station, drilling barges submerged on location, breakwater barges submerged on location, artificial islands and all other piles, pile clusters, pipes, or structures erected in the waters.

(b) Class "A”, “B”, or “C” structures. The term "Class A, B, or C structures” refers to the classification assigned to structures erected in areas in which corresponding requirements for marking are prescribed.

(c) Line of demarcation. The term "line of demarcation" means the dividing line used administratively to distinguish between the areas in which structures shall conform to Class "A" and Class "B" or "C" requirements.

(d) Outer Continental Shelf. The term "Outer Continental Shelf" means all submerged lands lying seaward and outside the area of lands beneath navigable waters as defined in the Submerged Lands Act (sec. 2, 67 Stat. 29, 43 U. S. C. 1301), and of which the subsoil and seabed appertain to the United States and are subject to its jurisdiction and control.

(e) Reliable operation. The term "reliable" as used in this part shall mean that dependability which will insure to the highest degree reasonably possible the uninterrupted operation of lights and fog signals as private aids to navigation for safety of marine commerce.

(f) Fog signal. The term “fog signal” as used in this part shall mean the audible sound signal, authorized as a private aid to navigation, to mark a structure for the safety of marine commerce whenever the visibility has been reduced by fog, mist, rain, falling snow, smoke, dust, or other phenomena.

[CGFR 58-17, 23 F.R. 3377, May 20, 1958, as amended by CGFR 63-18, 28 F.R. 4026, Apr. 14, 1963]

§ 67.01-10 Delegation of authority.

(a) Transfer of functions. The Secretary of the Treasury, by Treasury Department Order 167-15, dated January 3, 1955 (20 F. R. 840), and Treasury Department Order 167-17, dated June 29, 1955 (20 F. R. 4976), transferred to the Commandant, U. S. Coast Guard, the authority to prescribe regulations and to administer the functions described in section 4 (e) of the Outer Continental Shelf Lands Act (43 U. S. C. 1333), and to make provisions for the performance by subordinates in the Coast Guard of any of these functions.

(b) Delegation of functions. The Coast Guard District Commander is hereby delegated responsibility for performing, or having performed the inspections, enforcement, and administration of such regulations, which are or may be required. He may redelegate this authority as necessary to any person from the civilian or military branch of the Coast Guard.

§ 67.01-15 Classification of structures.

(a) The varied depths of water and marine commerce traffic routes which exist in the waters over the Outer Continental Shelf, and in other waters, permits the classification of structures according to their location in such waters. Those structures in the area seaward of the line of demarcation, prescribed by the regulations in this part, are designated as Class "A" structures. All structures shoreward of the line of demarcation, prescribed by the regulations in this part, are designated as either Class "B" or Class "C" structures.

(b) In the event a line of demarcation is not prescribed, the District Commander shall designate a structure “A”, "B", or "C" as he deems appropriate. § 67.01-20

cation.

Prescribing lines of demar

(a) Structures having a maximum horizontal dimension of 30 feet or less on any one side, or in diameter, shall be required to have one obstruction light visible for 360°.

(b) Structures having a maximum horizontal dimension of over 30 feet, but not in excess of 50 feet, on any one side, or in diameter, shall be required to have two obstruction lights installed on diagonally opposite corners, 180° apart, or as prescribed by the District Commander, each light to have a 360° lens.

(c) Structures having a horizontal dimension of over 50 feet on any one side. or in diameter, shall be required to have an obstruction light on each corner, or 90° apart in the case of circular structures, or as prescribed by the District Commander, each light to have a 360° lens.

(d) Where the overall dimensions of a structure require the installation of two or more obstruction lights, the lights shall all be mounted on the same horizontal plane within the limitations of height specified in § 67.20-5, § 67.25-5, § 67.30-5, as applicable.

or

(e) Lesser structures and piles, pile clusters or flare templates, etc., will not normally be required to be marked by obstruction lights, when they are located within 100 yards of a Class "A", "B" or "C" structure marked by established obstruction lights, but they shall be marked with red or white retro-reflective material, installed as prescribed by the District Commander.

(f) All obstruction lights shall be installed in a manner which will permit at least one of them to be carried in sight of the mariner, regardless of the angle of approach, until he is within 50 feet of the structure, visibility permitting.

§ 67.05-5 Multiple obstruction lights.

When more than one obstruction light is required by this part to mark a structure, all such lights shall be operated to flash in unison.

All obstruction lights required by this part shall be powered from a reliable power source, including auxiliary power sources as necessary. They shall display a quick-flash characteristic of approximately 60 flashes per minute, unless prescribed otherwise in the permit issued by the District Commander. Their color shall be white when marking Class "A" and "B" structures, and either white or red, as prescribed by the District Commander, when marking Class "C" structures. In determining whether white or red lights shall be authorized, the District Commander shall take into consideration matters concerning, but not necessarily limited to, the dimensions of the structure and the depth of water in which it is located; the proximity of the structure to vessel routes; the nature and amount of vessel traffic; and the effect of background lighting.

§ 67.05-15 Operating periods of ob. struction lights.

Obstruction lights shall be displayed at all times between the hours of sunset and sunrise, local time, commencing at the time the construction of a structure is begun. During construction and until such time as a platform capable of supporting the obstruction lights is completed, the fixed lights on an attending vessel shall be used. In addition, when lights are in use for general illumination to facilitate the construction or operation of a structure, and can be seen from any angle of approach at a distance equal to that prescribed for the obstruction lights for the class of structure, the actual operation of obstruction lights also will not be required.

[CGFR 58-34, 23 F. R. 7701, Oct. 4, 1958] § 67.05-20

ments.

Minimum lighting require

§ 67.05-25 Special lighting require

ments.

Whenever a structure is erected in a position on or adjacent to the edges of navigable channels and fairways, or lines of demarcation, the District Commander is authorized to require the structure to be marked by the lights which in his judgment are necessary for the safety of marine commerce, and without regard to the fact that the structure may be located in an area in which either Class "B" or Class "C" requirements are otherwise applicable. The requirements for the lights in any of these cases, shall not exceed those established for structures in the Class "A" areas. Subpart 67.10-General

Require

ments for Fog Signals

§ 67.10-1 Type and characteristics.

(a) The fog signal prescribed in this part shall be the audible sound signal which, in the judgment of the District Commander, is satisfactory in tone, characteristic, and geographic range.

(1) The sound signal produced shall have its maximum intensity at a frequency range above 100 cycles, and shall have a loudness level of 55 phons, at the geographic ranges specified in § 67.20-10, § 67.25-10, or § 67.30-10, as applicable.

(2) The fog signal apparatus when established shall be powered from a reliable power source, and if necessary, an auxiliary power source, to assure that the signal is reliable.

(3) In determining that the fog signal apparatus will provide the loudness level stated in this section, the District Commander may authorize the establishment and operation of the required signal, if it will produce the minimum acceptable sound pressure level in decibels for its fundamental frequency around a 360° horizontal plane passing through the signal, at a distance of 25 feet, measured in an anechoic chamber: Provided, That the minimum value is not less than that shown on the appropriate curve in Table "A" of this part. (For fog signal apparatus which produces an audible signal having appreciable harmonic content, in lieu of considering only the fundamental frequency, all harmonic components 1000 cycles per signal and below may be considered as adding to the loudness level. In evaluating the effect of har

tion.)

(c) The fog signal apparatus shall be located on the structure and so arranged that the sound signal produced will be audible over 360° with no wind, to the applicable geographic ranges prescribed in Subpart 67.20, 67.25, or 67.30 of this part: Provided, That the fog signal is located not less than 10 feet, nor more than 100 feet above the water.

[CGFR 58-17, 23 F.R. 3377, May 20, 1958, as amended by CGFR 62-32, 27 F.R. 10101, Oct. 13, 1961; CGFR 64-66, 29 F.R. 14634, Oct. 27, 1964]

§ 67.10-5 Operating periods.

A fog signal shall be required to mark a structure according to the class thereof, from the time the obstruction is established, with the actual period of operation required when reduced visibility prevails as prescribed in Subpart 67.20, 67.25, or 67.30 of this part: Provided, That in the absence of attendants for on-site or remote controlled operation, or of a satisfactory fog detection device capable of controlling the signal, the fog signal shall be operated continuously. During construction and until such time as a platform sufficient to contain fog signal apparatus can be completed, the whistle of an attending vessel may be used as the fog signal for the structure: Provided, That the vessel's whistle is equal to or better than that to be required for the structure, in tone and range. Nothing contained in this section shall be construed as relieving an attending vessel from compliance with fog signals required by the "Regulations for Preventing Collisions at Sea, 1948," or the local rules established in accordance with Rule 30 thereof, as appropriate. § 67.10-10 Minimum fog signal require

ments.

(a) The fog signal requirements prescribed in this part are the minimum requirements only, and shall not preclude the maintainer from making application for authorization to establish and operate a fog signal having a greater audible range: Provided, That the prescribed tone and characteristic are adhered to.

(b) Whenever a structure is erected in a position on or adjacent to the edges of navigable channels and fairways, or lines of demarcation, the District Commander may require the structure to be marked by the fog signal which in his judgment is necessary for the safety of marine commerce, and without regard to the fact that the structure may be lo

cated in an area in which either Class "B" or Class "C" requirements are otherwise applicable. The requirements for the fog signals in any of these cases, shall not exceed those established for structures in the Class "A" area. Subpart 67.15-Miscellaneous Marking Requirements

§ 67.15-1 Lights and signals on attend. ant vessels.

The requirements prescribed by this part apply to structures. The barges, vessels, and other miscellaneous floating plants in attendance shall display lights and signals in accordance with the "Regulations for Preventing Collisions at Sea, 1948," or the local rules established in accordance with Rule 30 thereof, as appropriate. However, when vessels are fixed to or submerged onto the seabed, they become structures as described in § 67.01-5.

(a) All submerged spoil banks, or artificial islands resulting from the dredging of private channels, laying of pipelines, or any other private operation, and all privately dredged channels which, in the judgment of the District Commander are required to be marked by aids to navigation, shall be marked by private aids to navigation conforming to the standard United States system of aids to navigation characteristics described in Subpart 62.25 of Part 62 of this subchapter.

(b) Applications for permits to establish and maintain private aids to navigation for the purpose indicated in this section shall be reviewed by the District Commander and forwarded to the Commandant, for final review and issuance of permits.

Subpart 67.20-Class "A"
Requirements

§ 67.20-1 Class "A" structures.

Class "A" structures shall be the structures erected in an area where Class "A" requirements must be met.