Prepare the Request for Joinder of Employee Pension Benefit Plan and Order. (Family Law) (FL-372). 3.ERISA is a federal law that sets minimum standards for retirement plans in private industry. The County Employees Retirement Law authorizes implementation of various COLAs to the pension benefit. The benefit handbooks are intended to help guide your individual retirement plan; should discrepancies between these guides arise, the law will take precedence. When a couple divorces, therefore, both spouses need to understand how the law treats their retirement funds during the property division process. There are both pre-tax and post-tax retirement savings programs available to you.