Chapter 296-52 Safety standards for possession, handling, and use of explosives.

(1) Storage.(a) Ammonium nitrate storage requirements do not apply to:(i) The transportation of ammonium nitrates while under the jurisdiction of and in compliance with U.S. DOT regulations (see 49 C.F.R., Part 173);(ii) The storage of ammonium nitrates while under the jurisdicti…

Table H-20Table of Distances for Storage of ExplosivesQuantity of ExplosiveDistances (in Feet)(In Pounds)Inhabited BuildingsPublic Highways with Traffic Volume 3,000 or Less Vehicles Per DayPassenger Railways and Public Highways: With Traffic Volume of More Than 3,000 Vehicles Pe…

Note:This table applies to the permanent storage of commercial explosives only. It does not apply to: 1. Explosives handling; 2. Explosives transportation; 3. Temporary storage of explosives; 4. Bombs, projectiles, or other heavily encased explosives.Magazines containing detonato…

Table H-22table of separation distances of ammonium nitrate and blasting agentsfrom explosives or blasting agents1Donor weightMinimum separation distance of receptor when barricaded2 (ft.)Minimum thickness of artificial barricades5 (in.)Pounds overPounds not overAmmoniumnitrate3B…

Explosives manufacturing plants that have buildings and magazines, where workers are regularly employed, must meet the quantity and separation distance requirements of Table H-23, intraexplosives plant quantity and distance table.(1) Explosives manufacturing buildings. Explosives…

(1) Use Table H-24 for magazines that are restricted to:(a) Division 1.2 or 1.3;(b) Division 1.4, low explosives;(c) Low explosives classified by BATF.(2) Detonators cannot be stored with low explosives.Table H-24TABLE OF DISTANCES FOR STORAGE OF LOW EXPLOSIVESPoundsFrominhabited…

Net weight offireworks(pounds)Distance between magazine and inhabited building, passengerrailway, or public highway(feet)Distancebetweenmagazine(feet) 0-1,0001501001,001-5,0002301505,001-10,000300200Above 10,000Use Table H-20 Note 1:The net weight is the weight of all pyrotechnic…

Construction of explosive storage magazines must comply with the requirements of this part and the Bureau of Alcohol, Tobacco, and Firearms (BATF) regulations.Note:Construction requirements for blasting agent bulk storage bins are located in WAC 296-52-67140, Bulk storage bins.[S…

A Type 1 storage facility must be:(1) A permanent structure such as:(a) A building;(b) An igloo;(c) An army-type structure;(d) A tunnel; or(e) A dugout.(2) Bullet resistant, fire resistant, weather resistant, theft resistant, and well ventilated.[Statutory Authority: RCW 49.17.01…

(1) All building-type storage facilities must:(a) Be constructed of masonry, wood, metal, or a combination of these materials;(b) Have no openings except for entrances and ventilation;(c) Have the ground around the facility slope away for drainage.(2) Wall construction.(a) Masonr…

These storage facilities must:(1) Be constructed of reinforced concrete, masonry, metal, or a combination of these materials.(2) Have an earth mound covering of at least twenty-four inches on the top, sides, and rear unless the magazine meets the requirements of WAC 296-52-70010 …

A Type 2 storage facility must:(1) Be a box, trailer, semi-trailer, or other mobile facility. When an unattended vehicular magazine is used, the wheels must be removed or it must be effectively immobilized by kingpin locking devices or other methods approved by the department.(2)…

(1) Exterior, doors, and top openings.(a) The exterior and doors must be constructed of at least 1/4-inch steel and lined with a minimum of three-inch hardwood.(b) Magazines with top openings must have lids with water resistant seals or lids that overlap the sides by a minimum of…

(1) Detonators in quantities of one thousand or less;(2) Ammonium perchlorate rocket motors in 62.5 gram amounts or greater, but not to exceed fifty pounds in total weight of explosives; or(3) Diversionary devices intended for law enforcement use only, but not to exceed fifty pou…

Storage facilities for detonators in quantities of one thousand or less:(1) Must be fire resistant and theft resistant;(2) Must be locked in an uninhabited building;(3) May be less than one cubic yard;(4) Must be painted red and have an identification label in case of fire.[Statu…

(1) Sides, bottoms, and covers must be constructed with a minimum of number 12 gauge metal and lined with a nonsparking material.(2) Hinges and hasps must be attached so they cannot be removed from the outside.(3) One steel padlock, which does not need to be protected by a steel …

A Type 4 storage facility must:(1) Be a building, an igloo, an army-type structure, a tunnel, a dugout, a box, a trailer, semi-trailer, or other mobile facility;(2) Be fire resistant, weather resistant, and theft resistant;(3) Have the ground around the facility slope away for dr…

(1) These magazines must be constructed of masonry, metal covered wood, fabricated metal, or a combination of these materials.(2) Foundations. Foundations must be constructed of:(a) Brick;(b) Concrete;(c) Cement block;(d) Stone;(e) Metal; or(f) Wood posts.(3) The space under the …

A Type 5 storage facility must:(1) Be a building, an igloo, an army-type structure, a tunnel, a dugout, a box, or a trailer, semi-trailer, or other mobile facility;(2) Be weather resistant and theft resistant;(3) Have the ground around the facility slope away for drainage;(4) Hav…

(1) Doors must be constructed of solid wood or metal.(2) Hinges and hasps must be installed so they cannot be removed when the doors are closed and locked by:(a) Welding;(b) Riveting; or(c) Bolting nuts on the inside of the door.(3) Locks.(a) Each door must be equipped with:(i) T…

(1) A day box for explosives must:(a) Be fire, weather, and theft resistant;(b) Be used in a manner that safely separates detonators from other explosives;(c) Be constructed of a minimum of number 12 gauge (.1046 inches) steel;(d) Be lined with at least either 1/2-inch plywood or…

A detonator day box is a temporary storage facility for detonators in quantities of one thousand or less.(1) Construction materials. Sides, bottoms, and covers must be:(a) Constructed of number 12 gauge metal;(b) Lined with a nonsparking material.(2) Hinges and hasps must be atta…

Magazine heating system requirements and the following apply: (1) Heat sources. Magazines requiring heat must be heated by either: (a) Hot water radiant heating; or(b) Air directed into the magazine building by hot water or low pressure steam (15 psig) coils located outside the m…

(1) Battery activated safety lights or lanterns may be used in explosive storage magazines.(2) National Fire Protection Association (NFPA) Standards.(a) Electric lighting used in an explosive storage magazine must meet National Electric Code (NEC) standards (NFPA 70-1992) for all…

These rules do not apply to in process storage and intraplant transportation during the manufacture of small arms ammunition, small arms primers, and smokeless powder.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 03-06-073, § 296-52-710, filed 3/4/…

Quantity limitations are not imposed on the storage of small arms ammunition in warehouses, retail stores, and other general occupancy facilities, except those imposed by the limitations of the storage facility.[Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WS…

Small arms ammunition cannot be stored with Division 1.1, 1.2, or 1.3 explosives.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-08-110, § 296-52-71020, filed 4/5/05, effective 6/1/05; WSR 03-06-073, § 296-52-71020, filed 3/4/03, effective 8/1/03. Sta…

Small arms ammunition must be separated from flammable liquids, flammable solids (as classified in 49 C.F.R. Part 172), and oxidizing materials by a:(1) Fire resistant wall with a one-hour rating; or(2) Distance of twenty-five feet.[Statutory Authority: RCW 49.17.010, 49.17.040, …

Quantities of small arms ammunition weighing more than fifty pounds must be transported according to federal Department of Transportation (U.S. DOT) regulations.[Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-71035, filed 1/23/02, effect…

(1) Small arms smokeless powder (Division 1.2 or 1.3) must be packed, stored, and transported in U.S. DOT approved shipping containers.(2) All smokeless powder must be stored in shipping containers made for smokeless powder (as required by 49 C.F.R. 173.93).[Statutory Authority: …

(1) Private residence or car.(a) Twenty-five pounds or less of small arms smokeless powder, no restrictions;(b) Twenty-five to fifty pounds of small arms smokeless powder, they must be stored in a strong box or cabinet constructed of a minimum of 3/4-inch plywood or equivalent ma…

Small arms ammunition primers must be packed, stored, and transported in U.S. DOT approved shipping containers.[Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-71055, filed 1/23/02, effective 3/1/02.]

Primers must be separate from flammable liquids, flammable solids, and oxidizing materials by a:(1) Fire resistant wall with a one hour rating; or(2) Distance of twenty-five feet.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 17-16-132, § 296-52-710…

(1) Private residence. The maximum small arms ammunition primers permitted is ten thousand primers. No restrictions apply.(2) Private car. The maximum small arms ammunition primers permitted is twenty-five thousand primers. No restrictions apply.(3) Dealer's display. The maximum …

Black powder, used in muzzleloading firearms must be packed, stored, and transported in U.S. DOT approved shipping containers.[Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-71075, filed 1/23/02, effective 3/1/02.]

(1) Private residence. No more than five pounds of black powder is permitted. No restrictions apply.(2) Private car. No more than five pounds of black powder is permitted. No restrictions apply.(3) Dealer's warehouse. No more than twenty-five pounds of black powder is permitted. …

Explosives delivered to any carrier must comply with U.S. DOT regulations. Explosives cannot be delivered to any carrier unless the packaging is in compliance with U.S. DOT regulations.[Statutory Authority: RCW 49.17.010, [49.17].040, and [49.17].050. WSR 02-03-125, § 296-52-7109…

Explosives cannot be received between sunset and sunrise from any:(1) Railway station;(2) Truck terminal;(3) Pier;(4) Wharf;(5) Harbor facility; or(6) Airport terminal.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 17-16-132, § 296-52-71095, filed 8…

Explosives waiting for delivery or further transit at a railway facility, truck terminal, pier, wharf, harbor facility, or airport terminal must be:(1) Stored in a safe place;(2) Isolated as much as practical;(3) In a manner that allows quick and easy removal.[Statutory Authority…

(1) Use of railway cars.Explosives cannot be kept in a railway car unless:(a) An emergency exists;(b) Permission has been granted by the local authority;(c) The railway car, its contents, and methods of loading are in compliance with U.S. DOT regulations (49 C.F.R. Chapter 1).(2)…

Explosives-blasting ordinance for local jurisdictionsBe it ordained by the ____________________ (jurisdiction name).Section 1: Permit required.(1) A current and valid blasting permit issued by _____________________ (jurisdiction name) is required by companies or individuals who:(…

Note:The sample blast record format is nonmandatory, but the information shown in the sample is required per WAC 296-52-67010(8), Blast records.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 05-08-110, § 296-52-725, filed 4/5/05, effective 6/1/05. Statu…

(1) General.(a) During periods of high avalanche danger, areas in avalanche paths must not be opened for use until trained personnel have evaluated conditions and determined whether avalanche control work is necessary.(b) When avalanche control work is deemed necessary, areas in …

dangerexplosives on the mountainUnexploded warheads, projectiles, or hand charges used in avalanche control may be found in target areas or in avalanche runout zones.unexploded warheadswarhead may be distortedfrom impact. avalauncher projectilered opaque body,red translucent fins…

(1) General.(a) The storage, handling, and use of explosives and blasting agents used in avalanche control practices must comply with this chapter and chapter 70.74 RCW.(b) The minimum requirements published in chapter 296-52 WAC, Part H, must be applicable to the storage, handli…

General. The department must recognize two permissible methods concerning hand charges for avalanche control blasting. The descriptions and requirements for each method are contained in this section.Note:A well-designed and constructed hand charge makeup room can enhance the corr…

(1) You must ensure that all members of avalanche control blasting crews are competent ski mountaineers in good physical and mental condition.(2) Each avalanche control blasting crew or team must consist of a qualified and licensed blaster and at least one trained assistant.(3) U…