Okla. Stat. tit. 63, § 63-1-316: New certificate of birth

A. The State Commissioner of Health shall establish a new

certificate of birth for a person born in this state, when the

Commissioner receives the following:

1. An adoption certificate as provided in the Oklahoma Adoption

Code, or a certified copy of the decree of adoption together with

the information necessary to identify the original certificate of

birth and to establish a new certificate of birth; except that a new

certificate of birth shall not be established if so requested by the

court decreeing the adoption, the adoptive parents or the adopted

person; and

2. A request that a new certificate be established and such

evidence as required by regulation proving that such person has been

legitimated, or that a court of competent jurisdiction has

determined the paternity of such a person.

B. When a new certificate of birth is established, the actual

place and date of birth shall be shown. It shall be substituted for

the original certificate of birth:

1. Thereafter, the original certificate and the evidence of

adoption, paternity or legitimation shall not be amended, nor shall

it be subject to inspection except upon order of a court of

competent jurisdiction or as otherwise specifically provided by law;

and

2. Upon receipt of notice of annulment of adoption, the

original certificate of birth shall be restored to its place in the

files and the new certificate and evidence shall not be subject to

inspection except upon order of a court of competent jurisdiction.

The original certificate shall be restored and may be amended in

accordance with Section 1-321 of this title.

C. Beginning on the effective date of this act, the biological

sex designation on a new certificate of birth issued under this

section shall be either male or female and shall not be nonbinary or

any symbol representing a nonbinary designation including but not

limited to the letter "X".