1.  Termination.  In addition to the methods of termination prescribed by sections 411 through 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.  Modification or termination proceeding.  A proceeding to approve or disapprove a proposed modification or termination under sections 411 to 416, or trust combination or division under section 417, may be commenced by a trustee or beneficiary, and a proceeding to approve or disapprove a proposed modification or termination under section 411 may be commenced by the settlor. The settlor of a charitable trust may maintain a proceeding to modify the trust under section 413.