California Code, Military and Veterans Code - MVC § 641

(a) A Medal of Valor may be presented to each person who, while an officer or enlisted member of the National Guard or Naval Militia, distinguishes themself by courageous conduct at the risk of life, above and beyond the call of duty while in the service of the state or of the United States.

(b) An award of the Medal of Valor shall not be made except upon clear and incontestable proof by affidavit of at least one eyewitness or person having personal knowledge of the act or deed.

(c) A Medal of Valor may be presented to each person who has been awarded the Congressional Medal of Honor, and proof by affidavit or otherwise of the act or deed shall not be required in those cases.