Washington Application to Amend a Birth Certificate (DOH 422-310)
Official state formCorrections and amendmentsForm DOH 422-310Free downloadLast verified November 10, 2026
Use this application to fix or update items on a Washington birth certificate. It is mailed to the Center for Health Statistics at the Washington State Department of Health. It is not for adoptions, adding or removing a parent, or legal name changes.
Who can use this form
- If the child on the certificate is under 18: the parents listed on the certificate or a legal guardian appointed by the court
- If the child is 18 or older, or legally emancipated: the person named as the child on the certificate or a legal guardian appointed by the court
- Not for changing a sex designation for reasons other than a data entry error
What to send with it
- Pages 3 and 4 of the application, filled out in blue or black ink
- A copy of a government-issued photo ID for every person who signs the application
- Supporting proof documents that show the full name and date of birth of the person whose information is being amended
- Proof that you qualify to ask for the amendment, if needed
- Optional: a certificate issued within the last year for a free exchange, or a certificate order form with payment
Where to send it
- Mail to
- Center for Health Statistics Attn: Amendments PO Box 47814 Olympia, WA 98504-7814
- State fee
- Not provided
- Typical processing
- 4 to 6 weeks, per the office's amendment page
- Form revision
- November 2026
- Source
- Official government page