(40 ILCS 5/11-173)
(from Ch. 108 1/2, par. 11-173)
Interest credits-All employees.
Amounts credited for age and service and prior service annuity shall be
improved by interest at the effective rate from the end of the month in
which the contributions were due during the time thereafter an employee is
in service until his annuity is fixed if a present employee or until
attainment of age 65 if a future entrant or a re-entrant.
(Source: Laws 1963, p. 161.)