CA Health & Safety Code Section 103449

(a)

When a new birth certificate is established pursuant to this article, the State Registrar shall so inform the local registrar and the county recorder whose records contain copies of the original certificate, who shall forward those copies to the State Registrar for filing with the original certificate, if he or she determines that it is practical for him or her to do so.

(b)

If the local registrar or county recorder determines that it would be impractical to forward the copies of the original certificate to the State Registrar, he or she shall cover and seal the copies in a manner that does not deface or destroy them, and shall forward a verified statement of this action to the State Registrar.