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2025 Revised Code of Washington
Title 49 - Labor Regulations
Chapter 49.24 - Health and Safety—Underground Workers.
- 49.24.010 - Pressure defined.
- 49.24.020 - Compressed air safety requirements.
- 49.24.030 - Medical and nursing attendants.
- 49.24.040 - Examination as to physical fitness.
- 49.24.060 - Penalty.
- 49.24.070 - Enforcement.
- 49.24.080 - Requirements for underground labor.
- 49.24.100 - Lighting appliances.
- 49.24.110 - Exhaust valves.
- 49.24.120 - Fire prevention.
- 49.24.130 - Air chambers—Hanging walks.
- 49.24.140 - Locks.
- 49.24.150 - Explosives and detonators.
- 49.24.160 - Air plant—Feed water.
- 49.24.170 - Electric power requirements.
- 49.24.180 - Inspection.
- 49.24.190 - Cars, cages, buckets—Employees riding or walking.
- 49.24.200 - Speed of vehicles.
- 49.24.210 - Oil supply restricted.
- 49.24.220 - Explosives, use of—Blasting.
- 49.24.230 - Firing switch—Warning by blaster.
- 49.24.240 - Inspection after blast.
- 49.24.250 - Code of signals.
- 49.24.260 - Requirements as to caissons.
- 49.24.270 - Shields to be provided.
- 49.24.280 - Caissons to be braced.
- 49.24.290 - Cages—Hoisting apparatus.
- 49.24.300 - Buckets in vertical shafts.
- 49.24.310 - Telephone system for tunnels.
- 49.24.320 - Location of lights.
- 49.24.330 - Generators, transformers, etc., to be grounded.
- 49.24.340 - Electrical voltage.
- 49.24.350 - Lamps to be held in reserve.
- 49.24.360 - Insulators required.
- 49.24.370 - Director to make rules and regulations.
- 49.24.380 - Penalty.
NOTES:
Coal mining code: Title 78 RCW.
Protection of employees: State Constitution Art. 2 s 35.
Supervisor of safety: RCW 43.22.040.
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