Okla. Stat. tit. 43, § 43-601-501: Recognition of income-withholding order issued in

another state.

An income-withholding order issued in another state may be sent

by or on behalf of the obligee, or by the support enforcement

agency, to the person defined as the obligor's employer under the

income-withholding law of this state without first filing a petition

or comparable pleading or registering the order with a tribunal of

this state.