Amends the Metropolitan Transit Authority Act. Provides that, on January 1, 2024 the Chicago Transit Authority shall become a division of the Regional Transportation Authority. Abolishes the Chicago Transit Board and provides that the Board of Directors of the Regional Transportation Authority will serve as the Board of the Chicago Transit Authority. Makes conforming changes. Amends the Regional Transportation Authority Act. Provides that, on January 1, 2024 the Suburban Bus Board and the Commuter Rail Board are abolished and that the Board of Directors of the Regional Transportation Authority will directly operate the Suburban Bus Division and the Commuter Rail Division of the Regional Transit Authority. Creates various committees composed of Directors of the Board of the Regional Transportation Authority, including committees to oversee the operations of each Division of the Authority. Makes conforming changes. Amends the Open Meetings Act, State Employees Group Insurance Act of 1971, and the Illinois Municipal Code making conforming changes. Effective January 1, 2024.