Section 21-13-201 - Levy, collection and distribution of 6 mill school tax(a) Pursuant to article XV, section 17 of the constitution of the state of Wyoming, there shall be levied each year, by the county commissioners in each county in the state, a tax of six (6) mills on the dollar of assessed valuation of the property within the county for the support and maintenance of the public schools. This tax shall be collected by the county treasurer. (b) On or before September 1 of each year, the state department of education shall notify the treasurer of each county of the percentage proportion to be allocated from the countywide six (6) mill school levy to each school district in his respective county. The computation of the distribution of the countywide six (6) mill levy shall be made by the department of education on the basis of the average daily membership (ADM) for the previous year. This number, for each district, shall be converted into a percentage of the total average daily membership (ADM) for all school districts within the county. The county treasurer shall distribute the revenue arising from the countywide six (6) mill levy among the school districts of the county according to the percentage computed above and pursuant to W.S. 21-13-207.