Imposition of excise tax; condition.

Sec. 2a. Beginning January 1, 1995, a city shall not impose an excise tax on income under this act unless at least 1 of the following applies: (a) The city had in effect on January 1, 1995 an excise tax on income under this act. (b) The imposition of an excise tax on income under this act is approved by the qualified and registered electors of the city.