If after July 1, 1975, there is any land lying within the boundaries of any county of this State which has not been made subject to a comprehensive land use plan pursuant to NRS 278.150, and zoning regulations pursuant to the provisions of NRS 278.010 to 278.630, inclusive, the provisions of NRS 278.640 to 278.675, inclusive, apply to the extent and in the manner indicated therein.
NRS 278.640