Cal. Bus. & Prof. Code § 16602.5

Any member may, upon or in anticipation of a dissolution of, or the termination of his or her interest in, a limited liability company (including a series of a limited liability company formed under the laws of a jurisdiction recognizing such a series), agree that he or she or it will not carry on a similar business within a specified geographic area where the limited liability company business has been transacted, so long as any other member of the limited liability company, or any person deriving title to the business or its goodwill from any such other member of the limited liability company, carries on a like business therein.