Okla. Stat. tit. 43, § 43-561-202: Custody transfers not applicable

The provisions of this article shall not apply to a transfer of

custody of a child by a parent or guardian of the child to:

1. A parent of the child;

2. A stepparent of the child;

3. An adult who is related to the child by blood, marriage,

adoption, or other relationship recognized by the laws of this

state;

4. An adult who, at the time of the transfer, had a close

relationship with the child or the parent or guardian of the child

for a substantial period, and whom the parent or guardian reasonably

believes, at the time of the transfer, to be a fit custodian of the

child;

5. An Indian custodian, as defined in Section 4(6) of the

Indian Child Welfare Act of 1978, 25 U.S.C. Section 1903(6), as

amended, of the child; or

6. A member of the child’s customary family unit recognized by

the child’s indigenous group under the laws of this state.