Mo. Rev. Stat. § 92.010

92.010. Maximum rate of levy for general purposes — method of increase (St. Louis). — 1. Any constitutional charter cities in this state which may now have or hereafter acquire seven hundred thousand or more inhabitants may levy upon all subjects and objects of taxation a rate for general municipal purposes not to exceed the annual rate of one dollar on the one hundred dollars assessed valuation; provided, that the city of St. Louis may levy for county purposes, in addition to the municipal rate of taxation above provided, a rate not exceeding the rate which would be allowed for county purposes if said city of St. Louis were a county; provided, however, that the rate of taxation for general municipal purposes herein limited may be increased for not to exceed four years, when the rate and purpose of the increase are submitted to a vote and two-thirds of the voters voting thereon shall vote therefor, but such increase so voted shall be limited to a maximum rate of taxation not to exceed thirty cents on the one hundred dollars assessed valuation. The legislative body of any of said cities may submit the question of an increase of levy when, in the opinion of such legislative body, necessity therefor arises, and such question shall be submitted by such legislative body when petitioned therefor by the voters equaling in number one percent or more of the voters of the city voting for mayor at the last city election at which a mayor was elected.

2. The question shall be submitted in substantially the following form:

Shall there be a ______ cent increase in tax levy on one hundred dollars valuation for general municipal purposes for ______ years?

3. If such increase in levy shall be voted, then such increased levy shall be effective for the number of years designated, and no longer, but said cities, through their legislative bodies, may submit any such proposal for continuing such increase of levy at any time for like periods not to exceed four years each.

(L. 1945 p. 1296 § 1, A.L. 1978 H.B. 971)