(a) Notwithstanding other provisions of AS 25.24.200 — 25.24.260, the court may not grant a final decree of dissolution that incorporates an agreement between the parties if the agreement unconditionally entitles a noncustodial parent to claim a child as a dependent under federal income tax laws. The court may incorporate into the decree of dissolution an agreement between the parties that entitles a noncustodial parent to claim a child as a dependent under federal tax laws for a tax year if the noncustodial parent satisfies the requirements of federal law and was not in arrears at the end of the tax year in an amount more than four times the monthly obligation under

1. (1) a support order applicable to the child in cases where a payment schedule has not been established for payment of continuing support and accumulated arrears under the support order; or
2. (2) a payment schedule if a payment schedule has been established for payment of continuing support and accumulated arrears under a support order applicable to the child.