40 ILCS 5/6-154
If a fireman who is granted any type of disability benefit under this Article refuses to submit to examination by any physician appointed by the board, he shall have no further right to receive the benefit.
A fireman who has withdrawn while disabled and entered upon annuity, and who re-enters the service on or after the date of withdrawal, and who has not served at least one year subsequent to the date of such re-entry, shall not receive ordinary disability benefit in excess of the amount he has previously received as pension on account of disability, or as annuity, for an equal period of disability. This provision shall apply throughout the duration of any disability incurred by the fireman within one year after his reinstatement resulting from any cause other than the performance of an act or acts of duty.
No disability benefit shall be paid on account of any form of disability for any period of time for which a disabled fireman has a right to receive any part of his salary, under any law or ordinance in effect in the city.
If a disabled fireman receives compensation from the city for such disability under the Workers' Compensation Act or Occupational Diseases Act, the disability benefit provided herein shall be reduced by any amount so received, if such amount is less than the amount of the benefit; and if the amount received as compensation exceeds the amount of the disability benefit, the fireman shall not receive such disability benefit until the benefit payable, accumulated at the rate herein stated, equals the amount of such compensation without consideration of interest.
If the widow, child or children, or parent or parents (or any of these persons) of any fireman whose death results from an act or acts of duty receives any compensation from the city under the Workers' Compensation Act or Occupational Diseases Act, the annuities herein provided for such beneficiaries shall be reduced by any amounts so received, if such amounts are less than the amount of the annuity or annuities. If the amount or amounts received as compensation exceed the amount or amounts of the annuity or annuities for the widow, child or children, or parent or parents, the annuities shall not be payable until the accumulated value of the annuity or annuities at the rate herein stated equals the amount of such compensation without consideration of interest. In making such adjustment, the annuity to the widow shall first be reduced.
Disability pension or disability benefit shall not be paid to any fireman while he resides outside the State of Illinois, unless such residence is by permission of the board.
40 ILCS 5/6-154