In order to transfer your out-of-state certificate to California, you must complete and submit the following to CDPH:
The Verification of Current Nurse Assistant Certification (CDPH 931, PDF). Part I of the CDPH 931 is to be completed by the applicant and Part II is to be completed by the endorsing state agency (the state you are coming from). If the state you are transferring your certificate from does not endorse these forms, please provide a screenshot of the online registry indicating your certificate is active.