The Employee Retirement Income Security Act of 1974 (ERISA) regulates pension plans. If your employer breaches ERISA or the terms of the pension plan, you have the right to file suit under federal law. For many violations, you must first file a claim under the internal system of appeals set forth in your pension plan before you can go to court. If you have questions concerning pension plans, you should consult a lawyer, accountant, actuary, or other pension expert.