Washington Denial of Parentage (DOH 422-158)
Official state formParentage and paternityForm DOH 422-158Free downloadLast verified November 10, 2026
A presumed or alleged genetic parent uses this legal form to deny parentage of a child. It is filed with the Center for Health Statistics at the Washington State Department of Health together with a completed Acknowledgment of Parentage.
Who can use this form
- A presumed parent or alleged genetic parent of the child
- The signer signs in front of a notarial officer or a witness, not both
- A witness must be at least 18 and not related by blood or marriage to the signers
What to send with it
- The completed form, filled out in ink and not altered
- A completed Acknowledgment of Parentage signed by the birth parent and the person seeking to establish parentage
- The $18 non-refundable filing fee, by check or money order payable to DOH
- Optional: $25 for a birth certificate, as printed on the form
Where to send it
- Mail to
- Center for Health Statistics P.O. Box 9709 Olympia, WA 98507
- State fee
- $18 filing fee; $25 for a birth certificate. If it is sent together with the Acknowledgment of Parentage, only one $18 filing fee is required. Otherwise, two are required.
- Typical processing
- Not provided
- Form revision
- January 2021
- Source
- Official government page