Class I, Zone 0, 1, and 2 locations.
007 Implementation of zone classification.
For the purposes of NEC 505.7, qualified person means a professional engineer registered in Washington.
[Statutory Authority: RCW
19.28.006,
19.28.010,
19.28.031,
19.28.041,
19.28.061,
19.28.101,
19.28.131,
19.28.161,
19.28.171,
19.28.191,
19.28.201,
19.28.211,
19.28.241,
19.28.251,
19.28.281,
19.28.311,
19.28.321,
19.28.400,
19.28.420,
19.28.490,
19.28.551. WSR 08-24-048, ยง 296-46B-505, filed 11/25/08, effective 12/31/08.]