1. The sales tax authorized in sections 67.1712 to 67.1721 shall be collected and allocated as follows:

(1) Fifty percent of the sales taxes collected from each county shall be deposited in the metropolitan park and recreational fund to be administered by the board of directors of the district to pay costs associated with the establishment, administration, operation and maintenance of public recreational facilities, parks, and public recreational grounds associated with the district. Costs for office administration beginning in the second fiscal year of district operations may be up to but shall not exceed fifteen percent of the amount deposited pursuant to this subdivision;

(2) Fifty percent of the sales taxes collected from each county shall be returned to the source county for park purposes, except that forty percent of such fifty percent amount shall be reserved for distribution to municipalities within the county in the form of grant revenue-sharing funds. Each county in the district shall establish its own process for awarding the grant proceeds to its municipalities for park purposes provided the purposes of such grants are consistent with the purpose of the district. In the case of a county of the first classification with a charter form of government having a population of at least nine hundred thousand inhabitants, such grant proceeds shall be awarded to municipalities by a municipal grant commission as described in section 67.1757; in such county, notwithstanding other provisions to the contrary, the grant proceeds may be used to fund any recreation program or park improvement serving municipal residents and for such other purposes as set forth in section 67.1757.

2. The sales tax authorized under subsection 2 of section 67.1712 shall be collected and allocated as follows:

(1) Sixty percent of the sales taxes collected from all counties shall be deposited in a separate metropolitan park and recreational fund to be administered by the board of directors of the metropolitan district to pay costs associated with the administration, operation, and maintenance of public recreational facilities, parks, and public recreational grounds associated with the metropolitan district. Of this amount:

(a) For a period ending twenty years after the issuance of any bonds issued for the purpose of improving and maintaining the Gateway Arch grounds, but no later than twenty-three years after the effective date of the incremental sales tax as approved by voter initiative under subsection 2 of section 67.1715:

a. Fifty percent shall be apportioned to accessibility, safety, improvement, and maintenance of the Gateway Arch grounds; and

b. Fifty percent shall be apportioned to accessibility, safety, improvement, and maintenance of park projects other than the Gateway Arch grounds;

(b) After the period described in paragraph (a) of this subdivision:

a. Twenty percent shall be apportioned to accessibility, safety, improvement, and maintenance of the Gateway Arch grounds; and

b. Eighty percent shall be apportioned to accessibility, safety, improvement, and maintenance of park projects other than the Gateway Arch grounds;

(c) Costs for office administration beginning in the second fiscal year of collection and allocation may be up to but shall not exceed fifteen percent of the amount deposited under this subdivision;

(2) Forty percent of the sales taxes collected from each county shall be returned to the source county for park purposes, except that forty percent of the amount allocated to each source county shall be reserved for distribution to municipalities within the county in the form of grant-sharing funds. Each county in the metropolitan district shall establish its own process for awarding the grant proceeds to its municipalities for park purposes, provided the purposes of such grants are consistent with the purpose of the metropolitan district. In the case of any county with a charter form of government and with more than nine hundred fifty thousand inhabitants, such grant proceeds shall be awarded to municipalities by a municipal grant commission as described in section 67.1757, and in such county, notwithstanding any other provision of law to the contrary, such grant proceeds may be used to fund any recreation program or park improvement serving municipal residents and for such other purposes as set forth in section 67.1757.

3. At a general election occurring not less than six months before the expiration of twenty years after issuance of any bonds issued for the purpose of improving and maintaining the Gateway Arch grounds, but no later than twenty-three years after the effective date of the incremental sales tax as approved by voter initiative under subsection 2 of section 67.1715, the governing body of any county within the metropolitan district whose voters approved such incremental tax shall submit to its voters a proposal to reauthorize such tax after the expiration of such period. The form of the question shall be determined by the metropolitan district. Such reauthorization shall become effective only after a majority of the voters of each such county who vote on such reauthorization approve the reauthorization.