(C)

1. (1) As used in division (C) of this section, "cost" has the same meaning as in section 351.01 of the Revised Code, and "convention center" has the same meaning as in section 307.695 of the Revised Code.

2. (2) The legislative authority of the most populous municipal corporation located wholly or partly in a county in which the board of county commissioners has levied a tax under division (D) of section 5739.09 of the Revised Code may amend, on or before September 30, 2002, that municipal corporation's ordinance or resolution that levies an excise tax on transactions by which lodging by a hotel is or is to be furnished to transient guests, to provide for all of the following:

   1. (a) That the rate of the tax shall be increased by not more than an additional one per cent on each transaction;
   2. (b) That all of the revenue from the increase in rate shall be pledged and contributed to a convention facilities authority established by the board of county commissioners under Chapter 351. of the Revised Code on or before May 15, 2002, and be used to pay costs of constructing, expanding, maintaining, operating, or promoting a convention center in the county, including paying bonds, or notes issued in anticipation of bonds, as provided by that chapter;
   3. (c) That the increase in rate shall not be subject to diminution by initiative or referendum or by law while any bonds, or notes in anticipation of bonds, issued by the authority under Chapter 351. of the Revised Code to which the revenue is pledged, remain outstanding in accordance with their terms, unless provision is made by law, by the board of county commissioners, or by the legislative authority, for an adequate substitute therefor that is satisfactory to the trustee if a trust agreement secures the bonds.
3. (3) The legislative authority of a municipal corporation that, pursuant to division (C)(2) of this section, has amended its ordinance or resolution to increase the rate of the tax authorized by division (B) of this section may further amend the ordinance or resolution to provide that the revenue referred to in division (C)(2)(b) of this section shall be pledged and contributed both to a convention facilities authority to pay the costs of constructing, expanding, maintaining, or operating one or more convention centers in the county, including paying bonds, or notes issued in anticipation of bonds, as provided in Chapter 351. of the Revised Code, and to a convention and visitors' bureau to pay the costs of promoting one or more convention centers in the county.

(D) As used in division (D) of this section, "eligible municipal corporation" means a municipal corporation that, on September 29, 2017, levied a tax under division (B) of this section at a rate of three per cent and that is located in a county that, on that date, levied a tax under division (A) of section 5739.09 of the Revised Code at a rate of three per cent and that has, according to the most recent federal decennial census, a population exceeding three hundred thousand but not greater than three hundred fifty thousand. The legislative authority of an eligible municipal corporation may amend, on or before December 31, 2017, that municipal corporation's ordinance or resolution that levies an excise tax on transactions by which lodging by a hotel is or is to be furnished to transient guests, to provide for the following:

1. (1) That the rate of the tax shall be increased by not more than an additional three per cent on each transaction;
2. (2) That all of the revenue from the increase in rate shall be used by the municipal corporation for economic development and tourism-related purposes.