California Code, Fish and Game Code - FGC § 1050.4

(a) On or before January 1, 2023, the department may provide an option to display a sport fishing license, validation, report card, or other sport fishing entitlement issued pursuant to this code or regulations adopted pursuant to this code electronically on a mobile device.

(b) A person who displays a sport fishing license, validation, report card, or other sport fishing entitlement electronically on a mobile device in accordance with this section shall be deemed to be in compliance with any requirement imposed pursuant to this code or regulation adopted pursuant to this code to possess or affix the entitlement.

(c) This section does not apply to a tag that is required to be affixed to a fish pursuant to this code or a regulation adopted pursuant to this code.