The provisions of this act shall not apply in the case of proposed disconnection of any land from cities of over 5,000 population. The provisions of this act shall not apply in the case of proposed disconnection of any land from incorporated villages under 400 population according to the latest or each succeeding federal decennial census. The provisions of this act shall not apply in the case of proposed disconnection of any lands from any city or village the population of which has increased more than 18 per cent during the interval between the federal census of 1940 and the federal census of 1950.
MCL 123.35