Okla. Stat. tit. 10A, § 10A-1-4-303: Summons - Contents – Waiver of service

A. 1. Upon the filing of the petition, the court shall

schedule a hearing and shall issue a summons requiring the parents,

legal guardian, custodian, the child if the child is twelve (12) or

more years of age, and any other persons the court determines to be

proper or necessary parties to the proceedings to appear personally

before the court at the date, time, and place stated in the summons.

The court may endorse upon the summons an order directing the

parent, guardian, custodian, or other person having the physical

custody or control of the child to bring the child to the hearing.

2. The summons shall be attached to a copy of the petition and

shall advise the parties of the right to counsel, including the

right of the child’s parent or legal guardian to court-appointed

counsel if indigent.

3. The summons shall state the relief requested, including

notice that child support may be ordered or modified and that the

child’s paternity, if at issue, may be established.

4. The summons shall also contain, in type at least as large as

the balance of the document, the following or substantially similar

language: "FAILURE TO RESPOND TO THIS SUMMONS OR TO APPEAR AT THIS

HEARING CONSTITUTES CONSENT TO THE ADJUDICATION OF THIS CHILD (OR

THESE CHILDREN) AS DEPRIVED CHILDREN AND MAY ULTIMATELY RESULT IN

LOSS OF CUSTODY OF THIS CHILD OR THE TERMINATION OF PARENTAL RIGHTS

TO THIS CHILD."

B. A party other than the child may waive service of summons in

writing or by voluntary appearance at the hearing. A child’s

counsel may waive service of summons on the child’s behalf.

C. If it subsequently appears that a person who should have

been served was not served and has not entered an appearance, the

court shall immediately order the issuance of a summons which shall

be served on the person.