(1) This part shall be local in effect and shall become effective in a particular county upon the contingency of a two-thirds (2/3) vote of the county legislative body or other governing body of the county approving this law, or upon the contingency of the majority of the voters casting votes in any election held for this purpose approving this law.
(2) The procedure for elections held for the purpose of approving this law shall be that the county election commission shall call and conduct an election within thirty (30) days after receiving a petition signed by ten percent (10%) of the qualified voters of the county, stating that they favor this law and requesting that an election be held in the county on the subject.
(3) The number of qualified voters in the county is deemed to be the total number of votes cast for all candidates for governor in the last general election, or upon a resolution of the county legislative body, or other governing body, duly certified to the election commission, requesting such an election.
(4) In such an election, the propositions to be voted upon shall be stated on the ballot on separate lines in the following manner: “For the County Purchasing Law of 1957” and “Against the County Purchasing Law of 1957.”