Conversion to Class 3 city status.

Provides that if the population of a second class city is reported by two consecutive federal decennial censuses (census) as having a population of less than 31,500, the city becomes a third class city on January 1: (1) of the calendar year following the next municipal election held after the most recent census; or (2) of the calendar year following the second municipal election held after the most recent census, if the effective date of the most recent census and the municipal election are in the same calendar year. Provides that if a city's population is less than 31,500 in the 2010 and 2020 censuses, the city becomes a third class city on January 1, 2027. Provides that the population of the second class city is calculated by subtracting the portion of the population of the city consisting of prison inmates from the population of the city reported by the federal decennial census.