Colorado Sex Designation Form
Official state formSex designation changeFree downloadLast verified November 10, 2026
Used to request a change of the sex listed on a Colorado birth certificate to Male, Female or X. It must be completed and submitted along with the Form to Correct or Change a Colorado Birth Certificate.
Who can use this form
- A registrant who is 18 years old or older completes and signs Section A.
- For a registrant under 18, a licensed medical or behavioral health provider completes and signs Section B.
- The form says any further amendment to the sex designation on a birth certificate requires a court order.
What to send with it
- This completed form together with the Form to Correct or Change a Colorado Birth Certificate.
- A provider licensed outside Colorado also sends a copy of their active license.
Where to send it
- Mail to
- See the form for where to file it.
- State fee
- This form prints no fee. It is submitted with the Form to Correct or Change a Colorado Birth Certificate, which prints a $25.00 fee to correct or change a birth certificate.
- Typical processing
- Not provided
- Form revision
- REVISED 09/2021
- Source
- Official government page