US lawNevadaRegulationsChapter 618 — OCCUPATIONAL SAFETY AND HEALTH618.634NAC 618.634Variance not retroactive.Year: 2026Length: 14 wordsOfficial source Cite as Nev. Admin. Code Sec. 618.634A variance granted pursuant to NRS 618.415 to 618.421 , inclusive, is not retroactive.PreviousNAC 618.631NextNAC 618.637