ERISA protects the retirement assets of American workers. "Plan" means the University of Illinois Supplemental 403(b) Retirement Plan, as amended from time to time. (y).As an "employer," a group or association can sponsor a defined contribution retirement plan for its members, as can a PEO sponsor a plan for client employers. Darch Employee Benefits, June 2010 What happens if an employer ceases making payments to its multi-employer pension plan because its employees are on strike? (bb) "Plan" means the "Teachers' Retirement System of Illinois Supplemental Savings. Plan" as amended from time to time. The underlying plan can be a profitsharing, stock bonus, preERISA money purchase pension, or a rural cooperative plan. The term "employer" is again essential to recognizing an "employee pension benefit plan" within the meaning of ERISA. Learn about the Employee Benefit Plan Audit services offered to companies in Illinois including 401k, 403b and other retirement plan audits. Shall, for purposes of this subchapter, be treated as welfare plans rather than pension plans.