Section 40 ILCS 5/11-125 - Persons to whom article does not apply(A) This Article does not apply to any of the following persons: (a) Any person employed prior to August 1, 1951 by such city, or board of education of such city by temporary appointment as defined in Section 10 of the Civil Service Act;(b) Any person employed by such city or the board of education of such city or the retirement board of any other annuity and benefit fund operating on a reserve basis in such city while he is eligible to contribute thereto;(c) Any person receiving a pension or annuity other than widow's or child's annuity, from a fund described in subparagraph (b) above;(d) Any person who enters service at age 65 or over prior to January 1, 1979, or who enters the service at age 70 or more subsequent to January 1, 1979;(e) Any person transferred to the employment of such city by virtue of the "Exchange of Functions Act, 1957".(B) The board of trustees may, by resolution, exclude persons who become employees after June 30, 1979 as public service employment program participants under the Federal Comprehensive Employment and Training Act and whose wages or fringe benefits are paid in whole or in part by funds provided under such Act.