Creates the O'Hare Sound Mitigation Grant Program Act. Requires the Department of Transportation Division of Aeronautics to establish and administer the O'Hare Sound Mitigation Grant Program for residential homes around O'Hare International Airport. Requires the grants to be used for updating windows, doors, and other soundproofing applications needed to soundproof the residential home. Describes criteria that are to be used to determine the eligibility of residential homes for grants under the Act. Defines "Division" and "residential home".