Washington Attachment to Confidential Information (Additional Parties or Children) is a document used in Washington state family law matters to protect the confidentiality of information related to a case involving additional parties or children. It is a form that is completed, signed, and filed with the court in order to protect confidential information from being shared with non-parties. The form is used to designate certain documents as confidential and to restrict access to them by non-parties. There are two types of Washington Attachment to Confidential Information (Additional Parties or Children): Standard and Limited. The Standard version is used by all parties in the case, while the Limited version is used by a limited number of designated parties. The form includes sections to identify the parties involved, a list of confidential documents, and a signature line for each party to acknowledge their agreement to the terms.