ERISA does not require any employer to establish a retirement plan. It only requires that those who establish plans must meet certain minimum standards.An administrator or sponsor of an employee benefit plan subject to ERISA must file information about each plan every year. Find general information about 401(k) plans, the tax advantages of sponsoring the plan and the types of plans available. All 401(k) plans must procure an ERISA bond to protect plan assets from theft or wrongdoing. Plans covered under ERISA include 401(k)s, pensions, deferred compensation plans and profitsharing plans. Here's what you need to know. Form 5500 is filed with the DOL and contains information about a 401(k) plan's financial condition, plan qualifications, and operation.