If the amendment relates to a certificate or marriage license that has not been transmitted to the State Registrar, the local registrar shall review the amendment for acceptance for filing, and if accepted shall file the amendment and shall note the fact of the amendment, with its date, on the otherwise unaltered original certificate or marriage license.
Source:
Section 103235, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=103235..