You can sign you name as it appears on your identification or you can sign with your partner's name on the Party One and Party Two lines of the certificate.
Self-certifying couples, who perform their self-certification in the Clerk and Recorder Office, should sign their current names on the certificate on the official title line as well as, Party 1 and Party 2 lines.
You also have the option to sign on Party 1 and Party 2 line with your partner's last name. It is not a requirement to sign with your partner's last name.
Please note: Name changes are not made by the Clerk and Recorder Office. You are responsible for making name changes through Social Security, motor vehicle, etc.