Much like your initial petition for the court to end your marriage, an announcement stating your intentions to move away must be served in writing to both your ex-spouse and the local court that has jurisdiction over your divorce and current custody orders. This must be done at least 45 days before your intended move. In addition to permanent moves, such a letter also needs to be filed and served temporary moves or extended trips — any relocation over 30 days is subject to these relocation laws.