Aldermen are scheduled Thursday to consider a series of new rules and requirements that would expand Mayor Lori Lightfoot’s control of the Chicago Board of Health, an advisory body that dates back to the city’s founding.

Introduced by Lightfoot last month, the ordinance (O2021-458) set for a vote by the City Council’s Committee on Health and Human Relations during its 10:30 a.m. meeting would vacate all eight seats on the board and allow the mayor to re-nominate them or replace them. The reconstituted board would have nine members each serving three-year terms, staggered so that three members’ terms expire each year.