7-14-303. Allocation of revenue and disposition of funds from county-imposed motor fuel excise tax. (1) A county that imposes a motor fuel excise tax shall establish a motor fuel excise tax account. When allocating the tax under subsection (2), county commissioners shall take into account any funding requested by a transportation district in the county.
(2) Revenue derived from a motor fuel excise tax imposed by a county under 7-14-301 must be deposited into the county's motor fuel excise tax account and apportioned among the county and municipalities in the county according to one of the following methods that is mutually agreed upon by the county and municipalities:
(a) by distributing 50% to the county and 50% to the incorporated cities and towns within the county apportioned on the basis of population. The distribution to a city or town must be determined by multiplying the amount of money available by the ratio of the population of the city or town to the total county population. The distribution to the county must be determined by multiplying the amount of money available by the ratio of the population of unincorporated areas within the county to the total county population.
(b) by basing the distribution upon the proportion of road miles outside municipalities and street miles within each municipality as a ratio of total road and street miles in the county, using the most recent public road miles available from the department of transportation; or
(c) by using any other method agreed upon by the affected county and municipalities as determined by an interlocal agreement.
(3) All taxes, interest, and penalties collected by the county treasurer under this part must be promptly deposited into the account established in subsection (1).