The State of Illinois Deferred Compensation Plan is a supplemental retirement program for State employees. Below are answers to the most frequently asked questions about the State of Illinois Deferred Compensation Plan ("Plan").Who is eligible to enroll? All current full-time and part-time Louisiana public employees are immediately eligible to participate in the Plan. Find your employer's plan. The SURS Deferred Compensation 457 Plan (also known as the SURS DCP) is an investment plan available to all actively contributing SURS members. Deferred compensation contribution limit increased. This voluntary plan, called the SURS Deferred Compensation Plan (DCP), provides members an avenue to save more and generate additional income in retirement. DROP is a retirement benefit that allows Tier 1 public safety members who are already eligible for retirement to continue working while collecting a salary.