Cal. Pen. Code § 1170.21
A conviction for a violation of Section 647f as it read on December 31, 2017, is invalid and vacated. All charges alleging violation of Section 647f are dismissed and all arrests for violation of Section 647f are deemed to have never occurred. An individual who was arrested, charged, or convicted for a violation of Section 647f may indicate in response to any question concerning his or her prior arrest, charge, or conviction under Section 647f that he or she was not arrested, charged, or convicted for a violation of Section 647f. Notwithstanding any other law, information pertaining to an individual's arrest, charge, or conviction for violation of Section 647f shall not, without the individual's consent, be used in any way adverse to his or her interests, including, but not limited to, denial of any employment, benefit, license, or certificate.
Ca. Pen. Code § 1170.21