38. Referendum.
 
    a. "'An ordinance originating or enacting a permanent law or laying down a rule of conduct or course of policy for the guidance of the citizens or their officers and agents is purely legislative in character and referable, but an ordinance which simply puts into execution previously-declared policies, or previously-enacted laws, is administrative or executive in character, and not referable.'" Forman v. Eagle Thrifty Drugs & Markets, 89 Nev. 533, 537, 516 P.2d 1234 (1973). No. 16.
 
    b. "We think that whether or not the citizens of a state wish to embark upon a policy of zoning for the purpose of regulating and restricting the construction and use of buildings within fixed areas is a legislative matter subject to referendum. But when, as in the present case, such policy has been determined and the changing of such areas, or the granting of exceptions // has been committed to the planning commission and the city council in order to secure the uniformity necessary to the accomplishment of the purposes of the comprehensive zoning ordinance, such action is administrative and not referable." Id. at 537-538.