You need to speak to the court clerk about what is necessary to submit for consideration and about the schedule. These matters are affected by local rules and procedures and how busy the court is. I expect that one of the things that will be needed is a notice to your former spouse that the proposed order has been submitted to the court for approval. He is entitled to object and will have some amount of time to respond. Again, how that is handled and how much time involved is a matter of local court rules and procedures. Navigating the last part is a bit intimidating because it seems strange and overwhelming in detail, but usually the court clerks are helpful in guiding you in what you need to do. In California, they have prescribed forms for just about everything, and you do not need the joinder package. You are beyond that stage in the process. Just tell the clerk that you have a proposed QDRO and the plan has reviewed it. I really hate this terminology, but sometimes it is best understood if you say the plan has "pre-approved" the proposed form of order.