DEFINED CONTRIB PLANS-PRUDENCE

Amends the Counties Code and Illinois Municipal Code to provide that if a county or municipality offers a 457(b) plan to its officers, employees, or both, or makes contributions to such a plan on behalf of its officers, employees, or both, then that county or municipality, and the persons acting under its authority, must act in accordance with the prudent investor rule when making plan-related decisions. Limits the concurrent exercise of home rule powers. Amends the School Code to provide that if a school board other than the Chicago Board of Education offers a 403(b) or 457(b) plan to its officers, employees, or both, or makes contributions to such a plan on behalf of its officers, employees, or both, then that school board, and the persons acting under its authority, must act in accordance with the prudent investor rule when making plan-related decisions. Amends the State Mandates Act to require implementation without reimbursement.