(1) The county board of commissioners of a county having a population of less than 600,000 persons, and having a city of at least 40,000 population may enact an ordinance to levy, assess, and collect an excise tax from all persons engaged in the business of providing rooms for dwelling, lodging, or sleeping purposes, except in hospitals or nursing homes, to transient guests, whether or not membership is required for the use of the accommodations.

  (2) If a county meets the requirements of subsection (1) on the date it enacts an ordinance under this act and, after the 1990 decennial census, the county has a population of less than 120,000 persons and has a city with a population of 35,000 or more persons, that county may continue to levy, assess, and collect the excise tax under this act until October 1, 1991.

  (3) If a county described in subsection (2) has any accommodations located within the county that are also located within the boundaries of a city in which the majority of the population of that city reside in an adjoining county, then the accommodation is exempt from the tax under this act.

  (4) If a county described in subsection (2) has any accommodations located within the county that are also located within the boundaries of a city with a population of less than 5,000 persons, then the accommodation is exempt from tax under this act.

  (5) The ordinance provided by this act may be amended or repealed in the same manner as it was adopted.

  (6) The tax imposed pursuant to this act shall be at a rate of not more than 5% of the total charge for accommodations subject to this act.

  (7) If a county meets the requirements of subsection (1) on the date it enacts an ordinance under this act, the county may continue to levy, assess, and collect the excise tax under this act.