Requires that, in any proceeding under chapter 13.34 RCW, if the petitioner submits a report containing any recommendations, opinions, evaluations, or assertions to the court, the petitioner must provide the court with documentation relating to the recommendation, opinion, evaluation, or assertion, that is available to the petitioner and of which the petitioner is aware, including but not limited to psychological evaluations, service reports, visitation reports, foster parent reports, medical reports, and other reports relevant to that particular court hearing.