Okla. Stat. tit. 43, § 43-601-605: Notice of registration of order

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:

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.