Business and Professions Code § 26302

(a) Notwithstanding any other law, a foreign licensee may engage in commercial cannabis activity with a state licensee and a state licensee may engage in commercial cannabis activity with a foreign licensee, subject to the requirements and limitations set forth in this chapter.

(b) A foreign licensee shall not engage in commercial cannabis activity within the boundaries of this state without a state license, or engage in commercial cannabis activity within a local jurisdiction without a license, permit, or other authorization issued by the local jurisdiction.

(c) A foreign licensee shall be subject to the jurisdiction of this state for the purpose of actions taken for violation of California commercial cannabis laws and regulations.