Last Update: 8/1/17

Chapter 296-52 WAC

SAFETY STANDARDS FOR POSSESSION, HANDLING, AND USE OF EXPLOSIVES

WAC Sections

PART A
DEFINITIONS, PURPOSE, SCOPE, AND APPLICATION
Definitions.
Implementation of the Washington State Explosives Act.
Purpose and intent.
Coverage.
Exemptions.
STATE AND LOCAL GOVERNMENT JURISDICTIONS
The department.
Other government entities.
BASIC LEGAL OBLIGATIONS
Responsibility to obtain an explosives license.
Unlicensed activities.
Drug use.
License revocation, suspension, and surrender.
Violation appeals.
BASIC HAZARD PRECAUTIONS
Hazards to life.
Entry and access to explosive areas.
Abandonment of explosives.
Firearms.
Fire.
Daylight blasting.
Notification—Blasting near utilities.
MISCELLANEOUS
Explosive industry employers.
Variance from a chapter requirement.
Using standards from national organizations and federal agencies.
PART B
EXPLOSIVE LICENSING
Types of explosive licenses.
License applicants must provide this information.
License applicants must complete department forms.
License fees.
Verification of applicant information.
Applicant participation.
Criminal records.
Reasons why applicants may be disqualified.
License terms.
License renewal.
DEALER'S LICENSE
Responsibility to obtain a dealer's license.
Dealer applicant information.
Prohibit explosives items from sale or display in these areas.
Container labeling.
Authorized agent information.
Verification of customer identity.
Recordkeeping and reporting.
PURCHASER'S LICENSE
Responsibility to obtain a purchaser's license.
Applicant information.
Authorized agents.
Explosive order deliveries.
Notify the department of blaster changes.
BLASTER'S LICENSE
Responsibility to obtain a blaster's license.
General qualifications for blasters.
List A qualifications.
List B qualifications.
List C qualifications.
Application.
Blaster license applicant information.
Blaster license testing.
Blaster license limits.
Blaster license disclosure.
Purchaser disclosure.
Changes to a blaster's license classification.
Blaster license renewal.
List A and B renewal qualifications.
List C renewal qualifications.
Manufacturer's license.
Responsibility to obtain a manufacturer's license.
Manufacturer applicant information.
Manufacturing site inspections.
Conditions of a manufacturer's license.
Annual inspection.
Site plan.
Storage license.
Responsibility to obtain a storage license.
Storage applicant information.
Storage site inspections.
Demonstration of handling and storage experience.
Storage license number.
Storage limit.
Annual storage inspection.
Mobile storage sites.
Moving a licensed magazine.
Altering or destroying a licensed magazine.
Transfer, sale or lease of a magazine or mobile storage site.
Reporting changes in conditions.
PART C
USE OF EXPLOSIVE MATERIALS
Blaster in charge responsibilities.
GENERAL EXPLOSIVES RULES
Black powder.
Age of explosives.
Blast site storage.
Day box storage.
Attendants must be present.
Handling explosives.
Trainee supervision.
Storms.
Extraneous electricity and radio frequency (RF) transmitters.
Vibration and damage control.
Storage at blast sites.
Blast area precautions.
Drilling.
Loading blast holes.
Initiation systems.
Use of safety fuse with detonators.
Use of detonating cord.
Firing the blast.
Precautions after firing.
Excavation work in pressurized air locks.
BLASTING AGENTS
Transportation, storage, and use.
Fixed location mixing.
Bulk delivery/mixing vehicles.
Bulk storage bins.
Transportation of blasting agents.
WATER-GEL AND EMULSION EXPLOSIVES AND BLASTING AGENTS
GENERAL
Note: Water-gels and emulsions must be transported, stored, and used in the same way as explosives or blasting agents according to product classification unless stated otherwise in WAC 296-52-67150, Water-gel and emulsion explosives and blasting agents, through WAC 296-52-67170, Bulk delivery/mixing vehicles.
Types and classifications.
Fixed location mixing.
Bulk delivery/mixing vehicles.
UNDERWATER BLASTING OPERATIONS
Separation distance from vessels and people.
Swimming and diving activities.
Initiation systems.
Loading tubes and casings.
Multiple charges.
UNDERGROUND BLASTING OPERATIONS
Storage.
Separation distance: Electrical storms.
Proper fume class use.
Combustible gases or dusts.
Initiating systems.
Firing the blast.
Returning to the blast.
High speed tunneling: Central primer house.
PART D
TRANSPORTATION OF EXPLOSIVE MATERIALS
Note: Requirements for transportation of blasting agents are located at WAC 296-52-67145, Transportation of blasting agents.
SCOPE
Public highways.
Job sites and off-highway roads.
Safety precautions.
Transportation of workers.
Cargo.
TRANSPORTATION VEHICLES
Vehicle strength and condition.
Open top vehicles.
Vehicle placards.
Vehicle fire protection.
Operation of vehicles transporting explosives.
Transporting detonators and explosives in the same vehicle.
Powder cars, vehicles, and conveyances.
Notification—Hoist operator.
Underground transportation.
PART E
STORAGE OF EXPLOSIVE MATERIALS
Detonators.
Explosives.
Exempt explosives.
Storage facilities.
Quantity and distance tables.
Storage within magazines.
Storage limits.
Notification of fire safety authority.
Magazine repairs.
Inventory.
Inspection.
Precautions for areas surrounding magazine.
Deteriorated explosives.
Explosives recovered from misfires.
Blast site storage.
Multiple magazines.
Blasting agents and supplies.
Ammonium nitrate.
QUANTITY AND DISTANCE TABLES
Table H-20—Table of distances for storage of explosives.
Table H-21—Quantity and distance table for separation between magazines.
Table H-22—Separation distances of ammonium nitrate and blasting agents from explosives or blasting agents.
Table H-23—Quantity and distance tables for manufacturing buildings.
Table H-24—Low explosives.
Table of distances for the storage of display fireworks (except bulk salutes).
PART F
MAGAZINE CONSTRUCTION
Magazine construction.
Type 1 magazines: Permanent storage facilities.
Building construction for Type 1 magazines.
Igloos, army-type structures, tunnels, and dugouts.
Type 2 magazines: Portable field storage.
Construction for Type 2 magazines.
Type 3 magazines: Indoor storage facilities.
Storage facilities for detonators.
Construction for Type 3 magazines.
Type 4 magazines: Blasting agent, low explosive, or nonmass detonating detonator storage facilities.
Construction for Type 4 magazines.
Type 5 magazines: Blasting agent storage facilities.
Construction for Type 5 magazines.
Explosives day box.
Detonator day box.
HEATING SYSTEMS
Magazine heating system requirements.
Lighting.
PART G
MISCELLANEOUS
Exemptions.
AMMUNITION
Quantity limits.
Storage with Division 1.1, 1.2, or 1.3 explosives.
Separation from flammable materials.
SMALL ARMS SMOKELESS POWDER
Transportation.
Shipping container.
Storage.
SMALL ARMS AMMUNITION PRIMERS
Shipping containers.
Separation from flammable materials.
Storage.
BLACK POWDER
Shipping containers.
Storage.
EXPLOSIVES AT PIERS, RAILWAY STATIONS, RAILWAY CARS, AND
VESSELS NOT OTHERWISE SPECIFIED IN THIS CHAPTER
Delivery to carriers.
Hours of transfer.
Storage in route.
Railway cars.
Appendix A, sample explosives-blasting ordinance for local jurisdictions, nonmandatory.
Appendix B, sample format for a blast record, nonmandatory.
PART H
AVALANCHE CONTROL
Avalanche control.
Acceptable warning signs for typical avalanche control devices (duds).
Storage, makeup, and use of explosives for avalanche control blasting.
Hand charge makeup methods.
Avalanche control blasting.
Retrieving misfired explosives (duds).
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