California's form for an LLC is F.568.

If the entity wasn't 'formed' in CA, the great state of CA might not want the F.568 or the $ 800, or the LLC fee that's based on gross receipts.  Or, it might (given the inherent greediness of CA).  And CA does have 'wording' about doing business in CA, even if an entity hasn't registered or received a SOS number.

Spidell (caltax.com) is a great source for CA information.