Ill. Admin. Code tit. 50, § 4439.80
a) The corporate authorities of a municipality in which an Article 3 police pension fund has been dissolved in accordance with Section 3-144.6 shall temporarily
re-establish the pension fund if a former police officer's reinstatement of creditable service is required under Section 3-110.7(b) of the Code and 50 Ill. Adm. Code 4404.