The order shall be made in the form and upon the blank prescribed and furnished by the State Registrar and shall become effective upon a filing of a certified copy with the State Registrar.
Every order determining the date of birth made pursuant to this chapter shall establish a presumption that the matter contained therein is a true and accurate statement of the time of birth. The presumption established by this section is a presumption affecting the burden of proof.
Source:
Section 103485, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=HSC§ionNum=103485..