(1) For the purpose of providing additional general revenues for a transit authority, funding a regional transportation improvement project under section 5595.06 of the Revised Code, or funding public infrastructure projects as described in section 306.353 of the Revised Code, and to pay the expenses of administering such levy, any transit authority may levy a tax upon every retail sale made in the territory of the transit authority, except sales of watercraft and outboard motors required to be titled pursuant to Chapter 1548. of the Revised Code and sales of motor vehicles, and may increase the rate of an existing tax. The rate of any tax levied pursuant to this section shall be a multiple of one-twentieth of one per cent. The rate shall not exceed one and one-half per cent minus the amount by which the rate levied under section 5739.021 of the Revised Code by a county located in the territory of the transit authority exceeds one per cent. The tax shall be levied and the rate increased pursuant to a resolution of the legislative authority of the transit authority and a certified copy of the resolution shall be delivered by the fiscal officer to the board of elections as provided in section 3505.071 of the Revised Code and to the tax commissioner. The resolution shall specify the number of years for which the tax is to be in effect or that the tax is for a continuing period of time, the purpose or purposes of the levy, and the date of the election on the question of the tax pursuant to section 306.70 of the Revised Code. The board of elections shall certify the results of the election to the transit authority and tax commissioner. A resolution adopted under this section may not specify that the sole purpose of the tax is to fund infrastructure projects as described in section 306.353 of the Revised Code; that purpose must be combined with the purpose of providing additional general revenues for the transit authority, funding a regional transportation improvement project under section 5595.06 of the Revised Code, or both. The resolution may specify the percentage of the proceeds of the tax that will be allocated among each of the purposes for which the tax is to be levied. If one of the purposes of the tax is to provide general revenue for the transit authority, the resolution may identify specific projects, functions, or other uses to which that general revenue will be allocated and the percentage of the tax proceeds to be allocated to each of those projects, functions, or other uses.