67.1712.  Sales tax may be imposed on retail sales, rate to fund program — additional sales tax, amount, purpose — ordinance to be submitted to voters. — 1.  The governing body of any county located within the proposed metropolitan district is hereby authorized to impose by ordinance a one-tenth of one cent sales tax on all retail sales subject to taxation pursuant to sections 144.010 to 144.525 for the purpose of funding the creation, operation and maintenance of a metropolitan park and recreation district.

  2.  In addition to the tax authorized in subsection 1 of this section, the governing body of any county located within the metropolitan district as of January 1, 2012, is authorized to impose by ordinance an incremental sales tax of up to three-sixteenths of one cent on all retail sales subject to taxation under sections 144.010 to 144.525 for the purpose of funding the operation and maintenance of the metropolitan park and recreation district.  Such incremental sales tax shall not be implemented unless approved by the voters of the county with the largest population within the district and at least one other such county under subsection 2 of section 67.1715.

  3.  The taxes authorized by sections 67.1700 to 67.1769 shall be in addition to all other sales taxes allowed by law.  The governing body of any county within the metropolitan district enacting such an ordinance shall submit to the voters of such county a proposal to approve its ordinance imposing or increasing the tax.  Such ordinance shall become effective only after the majority of the voters voting on such ordinance approve such ordinance.  The provisions of sections 32.085 and 32.087 shall apply to any tax and increase in tax approved pursuant to this section and sections 67.1715 to 67.1721.