Information on retirement plans for small businesses and the selfemployed. Choose a Plan, Maintain a Plan, Find or Fix Plan Errors, Plan Benefits.Mercer Advisors provides retirement plan services designed specifically for businesses like yours, to help you prepare for the future with confidence. Find general information about 401(k) plans, the tax advantages of sponsoring the plan and the types of plans available. The U.S. Department of Labor has made clear that states can operate ERISAgoverned plans that cover many private sector employers. The ERISA Form 5500 was created so the government can assess the financial condition, investments, and operations of all employee benefits plans. Children's Hospital of Philadelphia offers this plan as part of workplace benefits. ERISA is a federal law that establishes certain standards for retirement plans in the private industry.