5 GCA § 34121: Vacation or Modification of Orders.

The provisions of any order respecting maintenance or support may be modified only as to installments accruing subsequent to the motion for modification and only upon a showing of a substantial and material change of circumstances. Furthermore, any order directing payment of money for support or maintenance of the spouse or the minor child or children shall not be suspended nor the execution of the order stayed pending an appeal. The Superior Court of Guam shall have authority to modify any order, award, stipulation, or agreement as to child support (whether or not merged or integrated into a decree of divorce or separation) upon a showing of substantial and material change of circumstances. Inability to provide support or need for increased support because of unreasonable obligations voluntarily incurred shall not constitute a showing of substantial and material change of circumstances.