Authorizes the Caswell County Board of Commissioners to direct the County Board of Elections to hold an advisory referendum on whether to adopt a countywide zoning ordinance to implement zoning regulations for all unincorporated areas of Caswell County. Requires the Board of Commissioners to use the results of the referendum to determine residents' desires on zoning but specifies that the results are not legally binding on the Board of Commissioners as to its authority to adopt zoning and development regulation ordinances. Sets out the ballot language. Requires the referendum to be conducted on or before December 31, 2020.