@J12t you can just start a California coop. Non-residents can be members.
For #CoSocialCa we restrict membership to Canadian residents because most privacy, copyright, consumer protection etc. laws apply nationally. It's hard enough to run a good service domestically without having to deal with remote members.
But different coops have different needs.
@evan Are you certain about out-of-state (out-of-country?) members? I seem to have read something in the statute that sounded very much it was an in-state only thing under california state law, but then I'm not a lawyer and have not spent much time on it yet.