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§ 143.9 Two hours between broken periods. Where 2 hours or more intervene between broken periods, onehalf day's extra pay will be allowed for each distinct 2-hour period or part of a 2-hour period, if waiting time and actual service rendered within each period consists of at least 1 hour. [3 F. R. 3043]

§ 143.10 Waiting time. The same construction should be given the act when charging for waiting time as governs the charge for services actually rendered. No charge should be made unless after having reported for duty the waiting time amounts to at least one hour.

[3 F. R. 3043]

§ 143.11 Proration of charges. If services are performed for two or more applicants during one continuous tour of overtime duty, the charge for the extra compensation earned shall be prorated equitably according to the time attributable to the services performed for each applicant.

[11 F. R. 9578]

§ 143.12 Travel status overtime. When employees are in travel status, overtime shall apply the same as at official station.

[3 F. R. 3043]

§ 143.13 Congressional appropriations necessary. Payment of extra compensation for overtime services shall

be subject to appropriations being made therefor by Congress.

[3 F. R. 3043]

§ 143.14 Assessment and collection of fees. Assessment and collection of fees against steamship companies for overtime services shall be made even though the payment to employees for such services may not be made until funds are appropriated for that purpose. [3 F. R. 3043]

§ 143.15 Application form. An application on a form prescribed by the Commandant of the Coast Guard, shall be filed with the office being requested to furnish overtime services before such assignment can be made.

[3 F. R. 3043, as amended at 9 F. R. 13669]

§ 143.16 Billing for services. Overtime services shall be billed to the steamship companies on collection voucher provided for that purpose. Remittance shall be made by postal money order or certified check payable to the "Collector of Customs, Treasury Department" and forwarded to that officer at the port indicated on the voucher, who shall in turn deposit such remittance to a properly designated receipt account. [3 F. R. 3043, as amended at 9 F. R. 13669]

§ 143.17 Protests. Protests against the exaction of extra compensation shall be forwarded to the Commandant of the Coast Guard.

[3 F. R. 3043, as amended at 9 F. R. 13669]

SUBCHAPTER M-CONSTRUCTION OR MATERIAL ALTERATION OF PASSENGER VESSELS OF THE UNITED STATES OF 100 GROSS TONS AND OVER PROPELLED BY MACHINERY

Part 144-Construction or Material Alteration of Passenger Vessels of the United States of 100 Gross Tons and Over Propelled by Machinery

Sec.

144.01 Basis and purpose of regulations. 144.03 Vessels to which applicable. 144.05 Procedure for plan approval. 144.07 Definitions.

144.09 Type, location and construction of fire control bulkheads and decks. 144.11 Ceilings, linings, trim and decorations in accommodation spaces and safety areas. 144.13 Escapes. 144.15 Doors.

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144.27 Furniture and furnishings. 144.29 Alternate materials.

AUTHORITY: §§ 144.01 to 144.29 issued under R. S. 4462, as amended, sec. 5, 55 Stat. 244, as amended; 46 U. S. C. 416, 50 U. S. C. 1275. Interpret or apply sec. 5, 49 Stat. 1384, sec. 2 (a), 54 Stat. 1028; 46 U. S. C. 369, 463a.

SOURCE: §§ 144.01 to 144.29 contained in CGFR 47-5, 12 F. R. 808, 1088. Exceptions are noted following sections affected.

§ 144.01 Basis and purpose of regulations. By virtue of the authority vested in the Commandant of the Coast Guard

under section 101 of the Reorganization Plan No. 3 of 1946 (3 CFR, 1946 Supp.), section 5 of act of May 27, 1936, section 2 of act of October 9, 1940, and section 5 of act of June 6, 1941 (49 Stat. 1384, 54 Stat. 1028, 55 Stat. 244, as amended; 46 U. S. C. 369, 463a, 50 U. S. C. 1275), the regulations in this part are prescribed for the guidance of builders in constructing new passenger vessels or in making alterations in existing passenger vessels or in converting existing vessels to passenger vessels, showing the safety and fire prevention characteristics which will meet the approval of the Commandant, so that the vessels, when built or altered, as the case may be, can be navigated with safety to those on board.

§ 144.03 Vessels to which applicable. (a) The regulations of this part shall be applicable to the following vessels of 100 gross tons and over propelled by machinery:

(1) New passenger vessels.

(2) Existing passenger vessels upon which material alterations are to be performed.

(3) Existing vessels being converted to passenger vessels.

§ 144.05 Procedure for plan approval. Triplicate copies of general contract plans and specifications and of all other matter of a similar nature for all vessels shall be submitted through the Commander of the Coast Guard District in which the work is to be carried out, or of the District in which the design is being prepared if the place of building or conversion has not been decided upon, to the Commandant of the Coast Guard for his approval before the construction or material alteration shall be commenced, to enable him to determine that any such vessel or vessels, when built or altered, as the case may be, can be navigated with safety to those on board. In case the Commandant shall disapprove such plans and specifications, the person or persons submitting the same will be apprised thereof, together with the reasons for such disapproval, and advised of the amendments necessary to secure such approval. After the plans and specifications have been approved by the Commandant, no changes or alterations shall be made therein unless resubmitted in accordance with the procedure above outlined and approved by the Commandant.

§ 144.07 Definitions. (a) "Safety areas" will be considered as including the following spaces:

(1) Control stations, i. e. those spaces in which a continuous watch is maintained and in which navigating, radio, or fire control equipment is located.

(2) Passenger and crew stairway and elevator inclosures.

(3) Passenger and crew communicating corridors.

(4) Open decks and inclosed promenades in way of lifeboat embarkation or lowering positions.

(b) "Accommodation spaces" will be considered as including the following spaces:

(1) Public spaces, including halls, dining rooms, mess rooms, lounges, cafes, salesrooms, and other similar spaces normally accessible during the voyage.

(2) Staterooms, including passenger and crew rooms, barber shops, beauty parlors, offices, dispensaries, etc.

(3) Washrooms and toilet spaces, both public and private.

(4) Isolated lockers and small storerooms.

(5) Isolated serving pantries, etc., with incombustible furnishings.

(c) "Service spaces" will be considered as including the following spaces: (1) Motion picture booths and film lockers.

(2) Galleys, main pantries, and storerooms, including working alleyways and stairs, not necessarily inclosed, for the exclusive use of such spaces.

(3) Work shops, laundries, mail and baggage rooms, etc.

(d) "Machinery spaces" will be considered as including the following

spaces:

(1) Main and auxiliary machinery spaces, including trunks and casings, fuel oil filling stations, and working alleyways, gratings, and stairways, not necessarily inclosed, for the exclusive use of these spaces.

(2) Fuel tanks.

(3) Isolated fan and resistor rooms containing ventilation or air conditioning machinery, resistors, etc., only.

(e) "Cargo spaces" will be considered as including the following spaces:

(1) Cargo holds and trunks, both accessible and inaccessible and including

refrigerated cargo spaces and cargo oil tanks.

(f) "Miscellaneous spaces" will be considered as including the following spaces:

(1) Water tanks and voids.

(2) Open decks and inclosed promenades except in way of lifeboat embarkation and lowering positions.

(g) A "standard fire test" is one which develops in the test furnace a series of time-temperature relationships as follows:

5 minutes-1,000° F. 10 minutes-1,300° F. 30 minutes-1,550° F. 60 minutes-1,700° F.

(h) "Main vertical zones" are those sections, the mean length of which does not exceed 131 feet, into which the hull and superstructure are required to be divided by fire-resisting bulkheads.

(i) "Horizontal zones" are those sections which are bounded by the main vertical zone bulkheads, the shell, and by any two decks or by a tank top and an adjacent deck, where such decks are intact to shell and bulkheads.

(j) Where the term "steel or other equivalent metal" is used in this part, it is intended to require a material which, by itself or due to insulation provided, has structural and integrity qualities equivalent to steel at the end of the applicable fire exposure.

§ 144.09 Type, location and construction of fire control bulkheads and decks. (a) The hull, structural bulkheads, decks, and deckhouses shall be constructed of steel or other equivalent metal construction of appropriate scantlings.

(b) The hull and superstructure shall be subdivided by suitable structural steel or other equivalent metal bulkheads into main vertical zones, the mean length of which shall not exceed 131 feet.

(c) All bulkheads and decks shall be classed as A-60, A-30, A-15, A-0, B-15, B-0, or C, depending upon the type of space on each side of the bulkhead or above and below the deck.

(1) Bulkheads or decks of the "A" Class shall be composed of steel or equivalent metal construction, suitably stiffened and made intact with the main structure of the vessel, such as shell, structural bulkheads, and decks. They shall be so constructed that, if subjected to the standard fire test, they would

be capable of preventing the passage of flame for one hour. In addition, they shall be so insulated with approved structural insulation, bulkhead panels, or deck covering that the average temperature on the unexposed side would not rise more than 250° F. above the original temperature, nor would the temperature at any one point rise more than 325° F. above the original temperature, within the time listed below:

Class A-60-60 minutes.
Class A-30-30 minutes.
Class A-15-15 minutes.

Class A-0-0 minutes (1. e., no insulation requirements).

(2) Bulkheads of the "B" Class shall be constructed with approved incombustible materials and made intact from deck to deck (or to ceiling, as provided in paragraph (h) of this section) and to shell or other boundaries. They shall be so constructed that, if subjected to the standard fire test, they would be capable of preventing the passage of flame for one half hour. In addition, their insulation value shall be such that the average temperature of the unexposed side would not rise more than 250° F. above the original temperature, nor would the temperature at any one point rise more than 325° F. above the original temperature, within the time listed below:

Class B-15-15 minutes.

Class B-0-0 minutes (1. e., no insulation requirements).

(3) Class C bulkheads or decks shall be constructed of approved incombustible materials, but need meet no requirements relative to the passage of flame nor the limiting of temperature rise.

(d) The minimum requirements for the bulkheads between the various spaces, where such bulkheads form the boundaries of main vertical zones, shall be as noted in Figure 144.09 (d).

(e) The minimum requirements for the bulkheads between the various spaces, where such bulkheads do not form the boundaries of main vertical zones, shall be as noted in Figure 144.09 (e).

(f) The minimum requirements for the decks between the various spaces, where such decks form the boundaries of stepped main vertical zones, shall be as noted in Figure 144.09 (f).

(g) The minimum requirements for the decks between the various spaces, where such decks do not form the boundaries

819607-49- 43

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Control stations.

Stairways and elevator enclosures.
Corridors....

Lifeboat embarkation or lowering stations.
Staterooms and all public spaces with in-
combustible furnishings, veneers, trim,
drapes, rugs, etc.

Staterooms and public spaces under 500
square feet with incombustible furnish-
ings.

Public spaces from 500 square feet to 3,000
square feet with incombustible furnish-
ings.

Public spaces over 3,000 square feet with in-
combustible furnishings.

Staterooms and public spaces under 500
square feet with combustible furnishings
and isolated storerooms.

Public spaces from 500 square feet to 3,000
square feet with combustible furnishings.
Public spaces over 3,000 square feet with
combustible furnishings.

Washrooms, toilet spaces, and isolated pantries with incombustible fittings..

Galleys, main pantries, storerooms and

Cargo spaces and cargo oil tanks.

Water tanks and voids.

Open decks and enclosed promenades (not

FIGURE 144. 09 (d). Bulkheads forming part of a main vertical zone bulkhead.

Motion picture booths and film lockers..

Machinery spaces.....

Fuel tanks

Isolated fan rooms.

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Stairways and elevator enclosures.
Corridors..

Lifeboat embarkation or lowering stations
Staterooms and all public spaces with in-

combustible furnishings, veneers, trim,
drapes, rugs, etc..

Staterooms and public spaces under 500
square feet with incombustible furnish-
ings.

Public spaces from 500 square feet to 3,000
square feet with incombustible furnish-
ings..

Public spaces over 3,000 square feet with
incombustible furnishings.

Staterooms and public spaces under 500
square feet with combustible furnishings
and isolated storerooms.

Public Spaces from 500 square feet to 3,000
square feet with combustible furnishings.
Public spaces over 3,000 square feet with
combustible furnishings..

Washrooms, toilet spaces and isolated
pantries with incombustible fittings.

Galleys, main pantries, storerooms and workshops....

Motion picture booths and film lockers.

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FIGURE 144.09 (e). Bulkheads not forming part of a main vertical zone bulkhead,

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