(1) An obligor may contest the validity or enforcement of an income-withholding order issued in another state and received directly by an employer in this state by registering the order in a tribunal of this state and filing a contest to that order as provided in Article 6 of this chapter, or otherwise contesting the order in the same manner as if the order had been issued by a tribunal of this state.
(2) The obligor shall give notice of the contest to:
(a) A support enforcement agency providing services to the obligee;
(b) Each employer that has directly received an income-withholding order relating to the obligor; and (c) The person designated to receive payments in the income-withholding order, or, if no person is designated, the obligee.