1. In addition to the methods of termination prescribed by sections 456.4-411A to 456.4-414, a trust terminates to the extent the trust is revoked or expires pursuant to its terms, no purpose of the trust remains to be achieved, or the purposes of the trust have become unlawful, contrary to public policy, or impossible to achieve.

2. A proceeding to approve or disapprove a proposed modification or termination under sections 456.4-411A to 456.4-416, or trust combination or division under section 456.4-417, may be commenced by a trustee or beneficiary, and a proceeding to approve or disapprove a proposed modification or termination under section 456.4-411A may be commenced by the settlor. The settlor of a charitable trust may maintain a proceeding to modify the trust under section 456.4-413.