§ 168.15-30

erly installed and equipped with proper plumbing.

§ 168.15-30 Toilet rooms.

(a) There shall be provided 1 toilet for each 10 persons or fraction thereof to be accommodated. The persons to be accommodated shall include all persons who do not occupy rooms to which private facilities are attached.

(b) The toilet rooms shall be separate from the washrooms and shall be located convenient to the sleeping quarters of the persons to which they are allotted but shall not open directly into such quarters except when they are provided as private or semiprivate facilities.

(c) Where more than one toilet is located in a space or compartment, each toilet shall be separated by partitions. Such partitions shall be open at the top and bottom for ventilating and cleaning purposes.

(d) Urinals may be fitted if desired, but no reduction in the required number of toilets will be made therefor.

§ 168.15-35 Hospital space.

(a) Each vessel shall be provided with a hospital space. This space shall be situated with due regard to the comfort of the sick so that they may receive proper attention in all weath

ers.

(b) The hospital shall be suitably separated from other spaces and shall be used for the care of the sick and for no other purpose.

(c) The entrance is to be of such width and in such a position as to admit a stretcher case readily. Berths are to be of metal and may be in double tier, provided the upper berth is hinged and arranged to be secured clear of the lower berth when not in use. At least one berth is to be so arranged that it can be made accessible from both sides when necessary.

(d) The hospital shall be fitted with berths in the ratio of 1 berth to every 12 persons, but the number of berths need not exceed 6. These berths, in their size and arrangement, shall comply with the provisions of § 168.1520(a).

(e) The hospital shall have a toilet, wash basin, and bath tub or shower

(a) All quarters shall be adequately ventilated in a manner suitable to the purpose of the space and route of the vessei. The inlets shall be arranged to diffuse the inflow as widely as possible in order that the air shall be distributed without discomfort to the occupants.

(b) Except for such spaces as are located in deck houses where, under all ordinary weather conditions, the windows, ports, skylights, etc., and doors to passageways can be kept open, all spaces shall be ventilated by a mechanical system unless it can be shown that a natural system will meet the requirements outlined in paragraph (a) of this section.

(c) When washrooms are ventilated by a natural system, they may receive their supply of fresh air from well-ventilated passageways, but independent outlet ventilators must be fitted with an area of at least 10 square inches, exclusive of insect screening if fitted, for each 150 cubic feet of volume of the space ventilated.

(d) When toilet rooms are ventilated by a natural system, the fresh air must be supplied through independent inlet ventilators having a minimum area of 10 square inches, exclusive of insect screening if fitted, for each 150 cubic feet of volume of space ventilated. The outlet ventilators also must be independent to the open air and must be at least equal in size to the inlet ventilators.

(e) When mechanical ventilation is provided for sleeping rooms and messrooms, these spaces shall be supplied with fresh air equal to at least 10 times the volume of the room each hour and shall be so ventilated both at sea and in port when such spaces are occupied. The system shall be so designed that the impure air will exhaust in a satisfactory manner.

(f) When mechanical ventilation is provided for washrooms, toilet rooms, and hospital spaces, these spaces shall be fitted with exhaust ventilation to remove a volume of air equal to 10 times the volume of the space each hour and with adequate ventilation inlets so that it is possible to have

these spaces properly ventilated when all doors and ports are closed.

§ 168.15-55 Screening.

Provision shall be made to protect the quarters against the admission of insects by the fitting of suitable screens to ventilating skylights, airports, ventilators, and doors to the open deck.

§ 168.15-60 Inspection.

(a) The Officer in Charge, Marine Inspection, shall inspect the quarters of every such vessel at least once in each month or at such time as the vessel shall enter an American port and shall satisfy himself that such vessel is in compliance with the regulations in this part.

(b) Whenever it shall be found that such vessel is not in compliance with the regulations in this part, the Officer in Charge, Marine Inspection, shall proceed as provided in section 4453 of the Revised Statutes of the United States, as amended (46 U.S.C. 435).

Sec.

170.200 Estimated lightweight vertical center of gravity.

Subpart G-Special Installations

170.235 Fixed ballast.

170.245 Form flotation material.

Subpart H-Watertight Bulkhead Doors

170.248 Applicability.

170.250 Types and classes.

170.255 Class 1 doors; permissible locations.

170.260 Class 2 doors; permissible locations.

170.265 Class 3 doors; required locations. 170.270 Door design, operation, installation, and testing.

170.275 Special requirements for cargo space watertight doors.

Subpart -Free Surface

170.285 Free surface correction for intact stability calculations.

170.290 Free surface correction for damage stability calculations.

170.295 Special considerations for free surface of passive roll stabilization tanks. AUTHORITY: 46 U.S.C. 2101, 2104, 3301, 3306, 3316; 46 App. U.S.C. 86, 88a; 43 U.S.C. 1333(d); 50 U.S.C. 198; 49 CFR 1.46.

SOURCE: CGD 79-023, 48 FR 51010, Nov. 4, 1983, unless otherwise noted.

Subpart A-General Provisions

§ 170.001 Applicability.

(a) This subchapter applies to each vessel contracted for on or after January 3, 1984, that is

(1) Inspected under another subchapter of this chapter; or

(2) A foreign vessel that must comply with the requirements in Subchapter 0 of this chapter.

(b) Each vessel contracted for before January 3, 1984 may be constructed in accordance with the regulations in effect at the time. However, any alterations or repairs must be done in accordance with § 170.005.

(c) Certain regulations in this subchapter apply only to limited categories of vessels. Specific applicability statements are provided at the beginning of those regulations.

§ 170.005 Vessel alteration or repair.

(a) Alterations and repairs to inspected vessels must be done

(1) Under the direction of the Officer in Charge, Marine Inspection; and

(2) Except as provided in paragraph (b) of this section, in accordance with the regulations in this subchapter, to the extent practicable.

(b) Minor alterations and repairs may be done in accordance with regulations in effect at the time the vessel was contracted for.

§ 170.010 Equivalents.

Substitutions for fittings, equipment, arrangements, calculations, information, or tests required in this subchapter may be approved by the Commandant, the Commander, Merchant Marine Technical Office, or the Officer in Charge, Marine Inspection, if the substitution provides an equivalent level of safety.

§ 170.015 Incorporation by reference.

(a) Certain materials are incorporated by reference into this subchapter with the approval of the Director of the Federal Register. The Office of the Federal Register publishes a table, "Material Approved for Incorporation by Reference," which appears in the Finding Aids section of this volume. In that table is found the date of the edition approved, citations to the particular sections of this subchapter where the material is incorporated, addresses where the material is available, and the date of the approval by the Director of the Federal Register. To enforce any edition other than the one listed in the table, notice of the change must be published in the FEDERAL REGISTER and the material made available. All approved material is on file at the Office of the Federal Register, Washington, DC 20408 and at the Office of Merchant Marine Safety (G-MTH-5/ 13), Room 1308, U.S. Coast Guard Headquarters Building, 2100 Second Street SW., Washington, DC 20593.

(b) The materials approved for incorporation by reference in this subchapter are:

Military Specification MIL-P-21929B. International Maritime Organization (IMO) Resolution A.265 (VIII) dated December 10, 1973.

Subpart B-Definitions

§ 170.050 General terms.

(a) "Commander, Merchant Marine Technical Office (Commander (mmt))" means a district commander described in 33 CFR Part 3 whose command includes a merchant marine technical office or an authorized representative of the district commander.

(b) "Commandant" means the Commandant of the Coast Guard or an authorized representative of the Commandant.

(c) "Exposed waters" means waters more than 20 nautical miles (37 kilometers) from the mouth of a harbor of safe refuge and other waters which the Officer in Charge, Marine Inspection determines to present special hazards due to weather or other circumstances.

(d) "Great Lakes" includes both the waters of the Great Lakes and of the St. Lawrence River as far east as a straight line drawn from Cap de Rosiers to West Point, Anticosti Island, and west of a line along the 63rd meridian from Anticosti Island to the north shore of the St. Lawrence River.

(e) "Lakes, Bays, and Sounds" includes the waters of any lake, bay, or sound, except the Great Lakes.

(f) "Oceans" includes the waters of(1) Any ocean;

(2) The Gulf of Mexico; (3) The Caribbean Sea;

(4) The Gulf of Alaska; and

(5) Any other waters designated as "oceans" by the Commandant.

(g) "Officer in Charge Marine Inspection (OCMI)" means an officer of the Coast Guard who commands a Marine Inspection Zone described in 33 CFR Part 3 or an authorized representative of that officer.

(h) "Oil" means oil of any kind or in any form, and includes but is not limited to petroleum, fuel oil, sludge, oil refuse, and oil mixed with wastes other than dredged spoil.

(i) "Partially

means

protected waters"

(1) Waters within 20 nautical miles (37 kilometers) of the mouth of a harbor of safe refuge, unless determined by the OCMI to be exposed waters; and

(2) Those portions of rivers, harbors, lakes, etc. which the OCMI determines not to be sheltered.

(j) "Protected waters" means sheltered waters presenting no special hazards such as most rivers, harbors, lakes, etc.

(k) "Rivers" means any river, canal, or any other similar body of water designated by the OCMI.

§ 170.055 Definitions concerning a vessel. (a) "Auxiliary sailing vessel" means a vessel capable of being propelled both by mechanical means and by sails.

(b) "Barge" means a vessel not equipped with a means of self-propulsion.

(c) "Beam" or "B" means the maximum width of a vessel from

(1) Outside of planking to outside of planking on wooden vessels; and

(2) Outside of frame to outside of frame on all other vessels.

(d) "Bulkhead deck" means the uppermost deck to which watertight bulkheads and the watertight shell extend.

(e) "Downflooding" means, except as provided in § 174.035(b), the entry of seawater through any opening into the hull or superstructure of an undamaged vessel due to heel, trim, or submergence of the vessel.

(f) "Downflooding angle" means, except as specified in §§ 171.055(f), 172.090(d), 173.095(e), 174.015(b), and 174.035(b), the static angle from the intersection of the vessel's centerline and waterline in calm water to the first opening that cannot be closed watertight and through which downflooding can occur.

(g) "Draft" means the vertical distance from the molded baseline amidships to the waterline.

(h) "Length" means the distance between fore and aft points on a vessel. The following specific terms are used and correspond to specific fore and aft points:

(1) "Length between perpendiculars (LBP)" means the horizontal distance measured between perpendiculars taken at the forward-most and aftermost points on the waterline corresponding to the deepest operating draft.

(2) "Length overall (LOA)" means the horizontal distance between the forward-most and after-most points on the hull.

(3) "Length on the waterline (LWL)” means the horizontal distance between the forward-most and after-most points on a vessel's waterline.

(4) "Length on deck (LOD)" means the length between the forward-most and after-most points on a specified deck measured along the deck, excluding sheer.

(5) "Load line length (LLL)” has the same meaning that is provided for the term "length" in § 42.13-15(a) of this chapter.

(i) "Lightweight" means with fixed ballast and with machinery liquids at operating levels but without any cargo, stores, consumable liquids, water ballast, or persons and their effects.

(j) "Main transverse watertight bulkhead" means a transverse bulkhead that must be maintained watertight in order for the vessel to meet the damage stability and subdivision requirements in this subchapter.

(k) "Permeability" is the percentage of the volume of a space that can be occupied by water.

(1) "Sailing vessel" means a vessel propelled only by sails.

(m) "Ship" means a self-propelled vessel.

(n) "Tank vessel" means a vessel that is specially constructed or converted to carry liquid bulk cargo in tanks.

(0) "Tank barge" means a tank vessel not equipped with a means of self-propulsion.

(p) "Tank ship" means a tank vessel propelled by mechanical means or sails.

(q) "Vessel" means any vessel and includes both ships and barges.

(r) "Weather deck" means the uppermost deck exposed to the weather.

Subpart C-Plan Approval

§ 170.070 Applicability.

(a) Except as provided in paragraph (b) of this section, this subpart applies to each vessel.