40 ILCS 5/4-114
If a firefighter who is not receiving a disability pension under Section 4-110 or 4-110.1 dies (1) as a result of any illness or accident, or (2) from any cause while in receipt of a disability pension under this Article, or (3) during retirement after 20 years service, or (4) while vested for or in receipt of a pension payable under subsection (b) of Section 4-109, or (5) while a deferred pensioner, having made all required contributions, a pension shall be paid to his or her survivors, based on the monthly salary attached to the firefighter's rank on the last day of service in the fire department, as follows:
The pension to the surviving spouse shall terminate in the event of the surviving spouse's remarriage prior to July 1, 1993; remarriage on or after that date does not affect the surviving spouse's pension, regardless of whether the deceased firefighter was in service on or after the effective date of this amendatory Act of 1993.
The surviving spouse's pension shall be subject to the minimum established in Section 4-109.2.
In a case where the deceased firefighter left one or more minor children but no surviving spouse and the guardian of a child is receiving a pension of 12% of the monthly salary on August 16, 2013 (the effective date of Public Act 98-391), the pension is increased by Public Act 98-391 to 20% of the monthly salary for each such child, beginning on the pension payment date occurring on or next following August 16, 2013. The changes to this Section made by Public Act 98-391 apply without regard to whether the deceased firefighter was in service on or after August 16, 2013.
The maximum pension limitations in this paragraph (d) do not control over any contrary provision of this Article explicitly establishing a minimum amount of pension or granting a one-time or annual increase in pension.
Notwithstanding any other provision of this Article, if a person who first becomes a firefighter under this Article on or after January 1, 2011 and who is not receiving a disability pension under Section 4-110 or 4-110.1 dies (1) as a result of any illness or accident, (2) from any cause while in receipt of a disability pension under this Article, (3) during retirement after 20 years service, (4) while vested for or in receipt of a pension payable under subsection (b) of Section 4-109, or (5) while a deferred pensioner, having made all required contributions, then a pension shall be paid to his or her survivors in an amount equal to the greater of (i) 54% of the firefighter's monthly salary at the date of death, or (ii) 66 2/3% of the firefighter's earned pension at the date of death, and, if there is a surviving spouse, 12% of such monthly salary shall be granted to the guardian of any minor child or children, including a child who has been conceived but not yet born, for each such child until attainment of age 18. Upon the death of the surviving spouse leaving one or more minor children, or upon the death of a firefighter leaving one or more minor children but no surviving spouse, a monthly pension of 20% of the monthly salary shall be granted to the duly appointed guardian of each such child for the support and maintenance of each such child until the child reaches age 18. The total pension provided under this paragraph shall not exceed 75% of the monthly salary of the deceased firefighter (1) when paid to the survivor of a firefighter who has attained 20 or more years of service credit and who receives or is eligible to receive a retirement pension under this Article, (2) when paid to the survivor of a firefighter who dies as a result of illness or accident, (3) when paid to the survivor of a firefighter who dies from any cause while in receipt of a disability pension under this Article, or (4) when paid to the survivor of a deferred pensioner. Nothing in this Section shall act to diminish the survivor's benefits described in subsection (j) of this Section.
Notwithstanding Section 1-103.1, the changes made to this subsection apply without regard to whether the deceased firefighter was in service on or after the effective date of this amendatory Act of the 101st General Assembly.
Notwithstanding any other provision of this Article, the monthly pension of a survivor of a person who first becomes a firefighter under this Article on or after January 1, 2011 shall be increased on the January 1 after attainment of age 60 by the recipient of the survivor's pension and each January 1 thereafter by 3% or one-half the annual unadjusted percentage increase in the consumer price index-u for the 12 months ending with the September preceding each November 1, whichever is less, of the originally granted survivor's pension. If the annual unadjusted percentage change in the consumer price index-u for a 12-month period ending in September is zero or, when compared with the preceding period, decreases, then the survivor's pension shall not be increased.
For the purposes of this Section, "consumer price index-u" means the index published by the Bureau of Labor Statistics of the United States Department of Labor that measures the average change in prices of goods and services purchased by all urban consumers, United States city average, all items, 1982-84 = 100. The new amount resulting from each annual adjustment shall be determined by the Public Pension Division of the Department of Insurance and made available to the boards of the pension funds.
40 ILCS 5/4-114