Wyo. Stat. § 3-3-305: Filing petition upon occurrence of conditions.

Any time after the deposit of the petition and before its revocation, it may be brought on for hearing upon the filing of a statement verified by the person having possession of the petition showing that the event or the condition provided for in the petition has occurred. The petition and the verified statement shall be filed with the clerk of court of the county in which the person who executed the petition then resides.