Synopsis As Introduced Amends the Chicago Police and Chicago Firefighter Articles of the Illinois Pension Code. Establishes a presumption that a fireman or policeman who becomes disabled as a result of exposure to and contraction of COVID-19 was injured in the line of duty and is entitled to receive a duty disability benefit under the applicable Article of the Code. Specifies that the changes made by the amendatory Act apply retroactively to March 9, 2020, and any policeman or fireman who has been previously denied a duty disability benefit that would otherwise be entitled to a duty disability benefit under the amendatory Act shall be entitled to a retroactive duty disability benefit. Amends the State Mandates Act to require implementation without reimbursement. Effective immediately.