US lawNevadaRegulationsChapter 653 — RADIATION THERAPY AND RADIOLOGIC IMAGING653.020NAC 653.020“Contact hour” defined.Year: 2026Length: 9 wordsOfficial source Cite as Nev. Admin. Code Sec. 653.020“Contact hour” means 50 minutes of learning or instruction.PreviousNAC 653.010NextNAC 653.025