ceed 20 grams each in weight. The inside tube diameter shall not exceed % inch.

(2) Sky rockets with sticks, total pyrotechnic composition not to exceed 20 grams each in weight. The inside tube diameter shall not exceed 1⁄2 inch. The rocket sticks must be securely fastened to the tubes.

(3) Helicopter type rockets, total pyrotechnic composition not to exceed 20 grams each in weight. The inside tube diameter shall not exceed 1⁄2 inch.

(4) Cylindrical fountains, total pyrotechnic composition not to exceed 75 grams each in weight. The inside tube diameter shall not exceed 3/4 inch.

(5) Cone fountains, total pyrotechnic composition not to exceed 50 grams each in weight.

(6) Wheels, total pyrotechnic composition not to exceed 60 grams for each driver unit or 240 grams for each complete wheel. The inside tube diameter of driver units shall not exceed 1⁄2 inch. (7) Illuminating torches and colored fire in any form, total pyrotechnic composition not to exceed one hundred grams each in weight.

(8) Sparklers and dipped sticks, total pyrotechnic composition not to exceed 100 grams each in weight. Pyrotechnic composition containing any chlorate or perchlorate shall not exceed 5 grams.

(9) Mines and shells of which the mortar is an integral part, total pyrotechnic composition not to exceed 40 grams each in weight.

(10) Firecrackers and salutes with casings, the external dimensions of which do not exceed 11⁄2 inches in length or 1/4 inch in diameter, total pyrotechnic composition not to exceed 2 grains each in weight.

(11) Novelties consisting of two or more devices enumerated in this paragraph when approved by the Bureau of Explosives.

(r) Igniter cord consists of textile yarns and/or wire uniformly covered with a combustible chemical mixture, with or without additional textile or wire countering, waterproofing or finishing coating which, when ignited, burns externally at various rates according to design.

(s) Detonating fuzes, Class C explosives, are used in the military service to detonate high explosive bursting charges of projectiles, mines, bombs, torpedoes and grenades. They contain a detonator and a quantity of high explosives. Detonating fuzes, Class C explosives, must be made and packed so that they will not cause functioning of other fuzes, explosives or explosive devices if one of the fuzes detonates in a shipping container or in adjacent containers.

(t) Explosive auto alarms are tubular devices containing a small amount of explosive composition and igniting compound which is ignited by an electric spark. These devices must be so designed that they will neither burst nor cause external flame on functioning.

(u) Toy propellant devices and toy smoke devices consist of small paper or composition tubes or containers containing a small charge of slow burning propellant powder or smoke producing powder. These devices must be so designed that they will neither burst nor produce external flame on functioning.

(v) Oil well cartridges are tubular devices consisting of a thin fiber, metal, or composition shell containing not more than 200 grains of propellant powder and having no ignition device or element.

(w) Actuating cartridges, explosive, fire extinguisher or valve consist of a small metal or fiber housing containing a small amount of initiating explosive and a propellant and are used to actuate valves on remotely controlled fire extinguishers or other apparatus.

(x) Cigarette loads, trick matches and trick noise makers, explosive, must be of a type approved by the Interstate Commerce Commission, and are described as follows:

(1) Cigarette loads consist of wooden pegs to which are affixed a small amount of explosive composition.

(2) Trick matches consist of book matches, strike anywhere matches, or strike-on-box matches which have small amounts of explosives or pyrotechnic composition affixed to the match stem just below the match head.

(3) Trick noise makers, explosive, consist of spheres containing a small amount of explosive composition.

(y) Smoke candles, smoke pots, smoke grenades, and smoke signals containing not more than 200 grams of pyrotechnic composition each exclusive of smoke compositions, without bursting charges, hand signal devices, very signal cartridges, and highway or railway fusees are devices designed to produce visible effects for signal purposes.

(1) Pyrotechnic compositions (other than smoke compositions) are defined as chemical mixtures which on burning and without explosion produce visible or brilliant displays or bright lights.

(2) Pyrotechnic smoke compositions are defined as chemical smoke producing mixtures, which on ignition burn at a controlled rate, without the production of flame and without the build-up of internal pressure that would rupture or burst the end product.

(z) Explosive release devices consist of a rod or link fitted with means for mechanical attachment to other apparatus or equipment and containing a small electrically initiated explosive charge which will break the rod or link upon functioning. These devices must be so designed that they will not function other explosive devices in the package sympathetically.

(aa) Explosive power devices, Class C, are devices designed to drive generators or mechanical apparatus by means of propellant explosives, Class B. The devices consist of a housing with a contained propellant charge and an electric igniter or squib. The devices must be of a design approved by the Interstate Commerce Commission for this classification.

(bb) Mild detonating fuse, metal clad, consists of a core containing not more than 21⁄2 grains of high explosive composition per lineal foot, clad with metal either with or without a covering of tapes, yarns, plasters or waterproofing compounds.

(cc) Igniter fuse-metal clad, consists of a base lead tube with a core of high explosive composition in quantity not exceeding 20 grains per foot.

(dd) Starter cartridges, jet engine, Class C, consist of a metal plastic and/or rubber case each containing a pressed cylindrical block of flammable solid material and having in the top of the case a small compartment that encloses an electric squib, small amount of black powder and/or smokeless powder which constitute an igniter. The starter cartridge is used to activate a mechanical starter for jet engines and must be of a type approved by the ICC except as provided for in § 146.20–3 (q) and § 146.20-13 (a).

[CGFR 52-8, 17 F.R. 6464, July 17, 1952, as amended by CGFR 53-54, 18 F.R. 8231, Dec. 16, 1953; CGFR 54-52, 19 F.R. 8514, Dec. 14, 1954; CGFR 55-20, 20 F.R. 4053, June 10, 1955; CGFR 56-29, 21 F.R. 7055, Sept. 20, 1956; CGFR 57-33, 22 F.R. 8572, Oct. 29, 1957; CGFR 57-49, 22 F.R. 10060, Dec. 14, 1957; CGFR 58-9, 23 F.R. 4844, June 29, 1958; CGFR 58-48, 23 F.R. 9635, Dec. 12, 1958; CGFR 59-14, 24 F.R. 5270, June 30, 1959; CGFR 59-46, 24 F.R. 9391, Nov. 21, 1959; CGFR 60-33, 25 F.R. 5237, June 11, 1960; CGFR 61-44, 26 F.R. 11019, Nov. 23, 1961; CGFR 62-48, 27 F.R. 12133, Dec. 7, 1962] § 146.20-13 Samples of explosives and explosive articles for laboratory and examination purposes.

(a) New explosives, including fireworks and explosive devices, other than Army, Navy or Air Force explosive or chemical ammunition of a security classification, must be approved by the I.C.C. as safe for transportation before being offered for shipment, except that a sample of such explosives, fireworks and explosive devices, not to exceed 5 pounds net weight, may be offered for transportation on board cargo vessels subject to the regulations in this subchapter for the purpose of this examination. Samples of explosives, except liquid nitroglycerin, other than new explosives for laboratory examination not exceeding 5 pounds net weight may be offered for transportation by cargo vessels subject to the regulations of this subchapter. For the purposes of the regulations in this part a new explosive, including fireworks and explosive devices, is the product of a new factory or an explosive or explosive device of an essentially new

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composition or character made by any factory.

(b) Before being offered for shipment, explosive articles in the experimental state must be made safe by removal of ignition elements or otherwise.

(c) Shipments of samples of explosives, fireworks and explosive devices must be packed, marked and described as required by the Interstate Commerce Commission regulations in effect at the time of shipment for the explosive contained therein.

(d) Label. Each outside package containing samples of explosives for laboratory examination will have securely and conspicuously attached to it a square red label as shown under subpart pertaining to shipper's requirements.

[CGFR 52-8, 17 F.R. 6464, July 17, 1952, as amended by CGFR 59-14, 24 F.R. 5270, June 30, 1959]

§ 146.20-15 Stowage of explosives.

(a) All articles of cargo classified as explosives by the regulations in this subpart shall be stowed on board a vessel in conformity with the conditions specified for the individual articles as set forth in Tables A, B, and C in §§ 146.20-100, 146.20-200, and 146.20-300. Mixed stowage of explosives with other explosives shall be in conformity with the stowage Magazine specificachart § 146.20-90. tions required for stowage of explosives are detailed in Subpart 146.09.

(b) The District Commander or the Captain of the Port may approve the stowage of blasting caps or small quantities of explosives in locations other than "Under deck," such as in an isolated compartment, mast or deck house, or in magazines (which may be portable) secured "On deck" provided:

area is

(i) No other stowage is available. (ii) The compartment or sheathed with wood.

(iii) No other dangerous cargo is stowed in the area.

(iv) The location is at least 8 feet from the vessel's side.

(v) The stowage is separated from other explosives or other dangerous articles by a permanent steel deck or bulkhead and a minimum distance of 25 feet.

(c) Vessels engaged in transfer of explosives between receiving points and delivery points within the harbors, bays, sounds, lakes and rivers including the explosive anchorages on the navigable waters may, when transporting explosives, stow such cargo "On deck in open", "On deck under cover", or "Under deck.' Explosives stowed "On deck in open" shall after loading and during transportation be covered by fire-resistant and/or flame-proof tarpaulins securely lashed in place.

[CGFR 59-14, 24 F.R. 5270, June 30, 1959, as amended, CGFR 63-19, 28 F.R. 5380, May 30, 1963]

§ 146.20-17

Stowage of explosives in holds containing coal.

Unless specifically authorized by the Commandant of the Coast Guard, explosives shall not be stowed in a hold containing coal, nor shall explosives be stowed in a hold above or adjacent to a hold containing coal.

[CGFR 62-11, 27 F.R. 5282, June 5, 1962]

§ 146.20-19 On deck stowage of explosives.

(a) Articles classified as explosives, the stowage of which is permitted "On deck" by the regulations in this part, shall be properly secured. Such security may be obtained by using existing vessel's structures such as bulwarks,

hatch coamings, shelter deck and poop bulkheads as part boundaries and effectively closing in the cargo by fitting angle bar closing means secured by bolting to clips or other parts of the ship's structure. Lashing of deck stowage permitted, provided eye pads are fitted to carry such lashings. Guard rails shall not be used to secure such lashings.

(b) Bulky articles may be secured by lashing with individual wire rope lashings.

(c) Shoring of such bulky articles of cargo shall be in addition to the foregoing means of securing.

(d) Explosives stowed "On deck" shall be so stowed as to provide safe access to the crew's quarters and to all parts of the deck required to be used in the navigation and necessary working of the vessel.

(e) Airing spaces for the crew shall be maintained free and clear of the stowed cargo.

(f) When runways for use of crew are built over stowed cargo, they shall be so constructed and fitted with rails and lifelines as to afford complete protection to the crew when in use.

(g) Explosives permitted by the regulations in this part to be stowed "On deck" shall not be stowed on or under a bridge deck or within a distance, in a horizontal plane, of 25 feet of an operating or embarkation point of any lifeboat.

(h) "On deck" cargoes of explosives shall not be stowed nearer than 25 feet in a horizontal plane to the access means provided for crew quarters.

(i) [Reserved]

(j) Fire plugs, sounding pipes, and access to same shall be maintained free and clear of explosive cargo stowed on deck.

(k) of the open deck space available after allowing for above restrictions for the stowage of explosives "On deck", not more than 50 percent of such available deck space shall be occupied by the stowage of these articles or explosives. § 146.20-21 Stowage of fireworks.

(a) Fireworks that can be "exploded en masse" shall not be offered or accepted for transportation except as high explosives and shall be stowed in magazines. Magazines may be of a portable type as detailed in § 146.09-6.

(b) Fireworks (other than the type that can be "exploded en masse") shall, when permitted to be transported on passenger vessels, be stowed in metal lockers, such metal lockers to be located either "On deck under cover" or "Tween decks readily accessible". (See § 146.09-5 for specifications of locker.)

(c) Fireworks shall not be stowed in the same hold in which magazines containing explosives are located.

(d) All containers packed with permissible special fireworks acceptable for transportation on board vessels in accordance with these regulations shall have attached the (red) special fireworks label as shown in § 146.05-17(s). § 146.20-23 Stowage of explosives with other dangerous articles.

The stowage of explosives with other dangerous articles shall conform to the following conditions.

(a) Class A or Class B explosives shall not be stowed on a vessel carrying inflammable liquids below deck or in excess of one ton on deck unless the engine and boiler room spaces or one complete hatch intervenes.

(b) Class A or Class B explosives shall not be stowed in a hold or compartment immediately below an "On deck” stowage of less than one ton of inflammable liquids.

(c) Class C explosives shall not be stowed in the same hold or compartment with inflammable liquids.

(d) Class A or Class B explosives shall not be stowed in the same hold or compartment with, nor in a hold or compartment above, below or adjacent to one containing inflammable solids, nor in a hatch above which inflammable solids are stowed on deck.

(e) Class C explosives shall not be stowed in the same hold or compartment with inflammable solids.

(f) Class A or Class B explosives shall not be stowed in the same hold or compartment with, nor in a hold or compartment above, below or adjacent to one containing oxidizing materials, nor in a hatch above which oxidizing materials are stowed on deck.

(g) Dynamite, commercial boosters and/or other non-priming non-initiating types of explosives which are compatible with dynamite may be stowed in a magazine located in the same hold or compartment with nitro carbo nitrate or in holds or compartments adjacent to nitro carbo nitrate provided the nitro carbo nitrate is packaged in strong metal cans, metal or fiber drums, barrels, kegs, or wooden or fiberboard boxes with noncombustible inside containers.

(h) Class C explosives shall not be stowed in the same hold or compartment with oxidizing materials.

(i) Class A or Class B explosives shall not be stowed on a vessel carrying corrosive liquids below deck unless one complete hatch or the engine and boiler room spaces intervene, nor on a vessel carrying corrosive liquids on deck unless the engine and boiler room spaces or bridge structural erections intervene.

(j) Class C explosives shall not be stowed in the same hold or compartment with corrosive liquids.

(k) Class A or Class B explosives shall not be stowed on a vessel carrying inflammable compressed gases "On deck" unless the engine and boiler room spaces or bridge structural erections intervene, nor in the same hold with non-inflammable compressed gases.

(1) Class C explosives shall not be stowed in a hold or compartment immediately below an "On deck" stowage of inflammable compressed gases.

(m) Class A or Class B explosives shall not be stowed in the same hold or compartment with poisonous articles.

(n) Class C explosives shall not be stowed in the same hold or compartment with Class D poisons.

(0) Class A or Class B explosives shall not be stowed in the same hold or compartment with combustible liquids.

(p) Explosives shall not be stowed in the same hold or compartment with hazardous articles.

(q) Explosives shall not be stowed on a vessel carrying cotton unless the engine and boiler room spaces or one complete hatch intervenes.

(r) Small arms ammunition without explosives loaded bullets may be stowed in a hold or compartment above, below, or adjacent to a hold or compartment containing cotton provided the hatch covers separating the hold or compartment concerned are covered with asbestos paper, tarpaulins and dunnage. [CGFR 59-14, 24 F.R. 5270, June 30, 1959, as amended, CGFR 60-33, 25 F.R. 5237, June 11, 1960]

§ 146.20-25

Stowage of explosives and nondangerous cargo.

Magazines in which explosives are stowed shall be protected from damage by heavy nondangerous cargo stowed in the same hold. Shafting, steel bar, steel shapes, pipe, heavy machinery and similar types of cargo shall, if stowed within the same hold, be so isolated or dunnaged or secured as to prevent damage to magazine under any conditions likely to be encountered during the voyage. § 146.20-27 Stowage and dunnaging of containers of explosives.

(a) Containers of explosives shall be so stowed and dunnaged as to prevent movement in any direction.

(b) Boxes of explosives marked “This Side Up" shall be so stowed.

(c) Kegs of black powder shall be stowed in an upright position, the bungs up, and each tier shall be completely dunnaged.

(d) The top tier of boxes and kegs shall be so braced and blocked or secured in such a manner that no displacement of any package can occur either upwardly or laterally.

(e) Containers of explosives shall be so braced and dunnaged that they shall not be liable to be pierced by the dunnaging or crushed by superimposed weight. [CGFR 52-8, 17 F.R. 6464, July 17, 1952, as amended by CGFR 57-33, 22 F.R. 8572, Oct. 29, 1957; CGFR 59-14, 24 F.R. 5270, June 30, 1959]

§ 146.20-29 Preparation of magazines, decks, hatches and holds before handling explosives.

(a) The floors of all magazines and holds shall be cleared of all rubbish and discarded dunnage, and be swept broom clean before commencing to load any explosive items of cargo. Bilges shall be examined and any residue of previous cargo removed therefrom.

(b) All decks, gangways and hatches over or through which explosives must be passed or handled in loading or unloading, shall be freed of all loose material and shall be swept broom clean both before and after loading or unloading.

(c) The hatches and cargo ports opening into a compartment in which explosives are stowed shall be kept closed at all times, except during loading or unloading of the compartment. When closed the hatches shall be covered with tarpaulins securely battened.

(d) Any deck loads over which explosives must be passed shall be limited in height to that of the hatch coaming, bulwark or three feet, whichever is greater.

[CGFR 52-8, 17 F.R. 6464, July 17, 1952, as amended by CGFR 52-62, 17 F.R. 11881, Dec. 31, 1952; CGFR 58-9, 23 F.R. 4839, June 28, 1958]

§ 146.20-31 Loading and unloading explosives.

No Class A dangerous explosives or Class B less dangerous explosives except special fireworks shall be loaded on board any vessel until all other cargo