The Washington Certificate of Trial Confirmation is a certificate issued by the Washington State Court System that confirms the completion of a trial and its associated proceedings. This certificate is a legal document that is used to provide proof of a court decision or trial. There are two types of Washington Certificate of Trial Confirmation: Final Trial Confirmation and Interlocutory Trial Confirmation. The Final Trial Confirmation is issued after a final judgment has been entered and is valid for one year from the date of the trial. The Interlocutory Trial Confirmation is issued before a final judgment is entered and is valid for six months from the date of the trial. Both types of Washington Certificate of Trial Confirmation are required to be filed with the court to provide evidence of the completion of a trial.