What credit unions participate in the medallion signature guarantee program in ca?

In California, several credit unions participate in the Medallion Signature Guarantee Program, including the California Coast Credit Union, San Diego County Credit Union, and SAFE Credit Union, among others. These credit unions provide the Medallion Signature Guarantee to help members authenticate their identity for various transactions, such as transferring securities. It's advisable to contact the specific credit union directly to confirm their participation and any requirements for obtaining the guarantee.