Provisions of an order with respect to maintenance ordered under section 1 of this chapter (or IC 31-1-11.5-9 (c) before its repeal) may be modified or revoked. Except as provided in IC 31-16-8-2 , modification may be made only:

1. (1) upon a showing of changed circumstances so substantial and continuing as to make the terms unreasonable; or

2. (2) upon a showing that:

   1. (A) a party has been ordered to pay an amount in child support that differs by more than twenty percent (20%) from the amount that would be ordered by applying the child support guidelines; and

   2. (B) the order requested to be modified or revoked was issued at least twelve (12) months before the petition requesting modification was filed.

      [Pre-1997 Recodification Citation: 31-1-11.5-17(a) part.]

As added by P.L.1-1997, SEC.7.