US lawWashingtonRegulationsTitle 296 — LABOR AND INDUSTRIES, DEPARTMENT OFChapter 296-46B — ELECTRICAL SAFETY STANDARDS, ADMINISTRATION, AND INSTALLATION296-46B-505WAC 296-46B-505WAC 296-46B-505. Zone 0, 1, and 2 locationsLast amended: 2024Year: 2026Length: 20 wordsOfficial source 007 Implementation of zone classification. For the purposes of NEC 505.7, qualified person means a professional engineer registered in Washington.PreviousWAC 296-46B-501NextWAC 296-46B-513