Okla. Stat. tit. 43, § 43-601-605

A. When a support order or income-withholding order issued in

another state or a foreign support order is registered, the

registering tribunal of this state shall notify the nonregistering

party. The notice must be accompanied by a copy of the registered

order and the documents and relevant information accompanying the

order.

B. A notice must inform the nonregistering party:

1. That a registered order is enforceable as of the date of

registration in the same manner as an order issued by a tribunal of

this state;

2. That a hearing to contest the validity or enforcement of the

registered order must be requested within twenty (20) days after

notice unless the registered order is under Section 601-707 of this

title;

3. That failure to contest the validity or enforcement of the

registered order in a timely manner will result in confirmation of

the order and enforcement of the order and the alleged arrearages;

and

4. Of the amount of any alleged arrearages.

C. If the registering party asserts that two or more orders are

in effect, a notice shall also:

Oklahoma Statutes - Title 43. Marriage and Family Page 198

1. Identify the two or more orders and the order alleged by the

registering party to be the controlling order and the consolidated

arrears, if any;

2. Notify the nonregistering party of the right to a

determination of which is the controlling order;

3. State that the procedures provided in subsection B of this

section apply to the determination of which is the controlling

order; and

4. State that failure to contest the validity or enforcement of

the order alleged to be the controlling order in a timely manner may

result in confirmation that the order is the controlling order.

D. Upon registration of an income-withholding order for

enforcement, the support enforcement agency or the registering

tribunal shall notify the obligor's employer pursuant to the income-

withholding law of this state.