Okla. Stat. tit. 10, § 10-7700-303: Denial of paternity - Validity

A presumed father may sign a denial of his paternity. The

denial is valid only if:

1. An acknowledgment of paternity signed, or otherwise

authenticated, by another man is filed pursuant to Section 20 of

this act;

2. The denial is in a record, and is signed, or otherwise

authenticated, under penalty of perjury;

3. The presumed father has not previously:

a. acknowledged his paternity, unless the previous

acknowledgment has been rescinded pursuant to Section

15 of this act or successfully challenged pursuant to

Section 16 of this act, or

b. been adjudicated to be the father of the child; and

4. The denial is signed not later than two (2) years after the

birth of the child.