Cal. Fish & Game Code § 2371

Abalone or abalone meat legally taken outside this state may be imported into this state when accompanied by a United States customhouse entry certificate showing the place of origin, and a certificate or clearance from the responsible governmental agency to the effect that such shipment was made in compliance with the laws and regulations of the place or country of origin, and such abalone or abalone meat may be possessed in this state and shipped or transported out of the state, but all containers of such abalone shall be marked with the abalone’s place or country of origin.