California Code, Fish and Game Code - FGC § 8036

(a) Any person who purchases or receives fish that are taken outside of this state and brought into this state by a person who is not a licensed commercial fisherman, for the purpose of resale to other than the ultimate consumer, shall obtain a fish importer's license.  The annual fee for a fish importer's license is five hundred forty-nine dollars ($549).

(b) Any person who, for the purpose of resale to other than the ultimate consumer, purchases or obtains fish within California in addition to fish that are purchased, obtained, or taken outside of the state, shall obtain both a wholesaler's license pursuant to Section 8035 and an importer's license pursuant to this section.