The Nevada Administrative Code (NAC) is a 16-volume set containing permanent Regulations of Nevada boards, commissions, departments and divisions. It defines how the laws are administered. The NAC is set up using the same chapter format as the NRS volumes. In order to keep the NAC current, the Nevada Administrative Code is regularly updated with supplements. There is no reprint published as there is with the NRS. You will need to purchase the NAC supplement subscription that runs July 1 - June 30 of each year to keep the NAC current.