as far as the residency goes most dispensaries or counties require that you have a I.D. that has a California address, that was started probably in the last couple of years because of people getting caught and businesses being lost becuase of no recommendation and over the state border transporting. as far as for when you hold a recommedation there are 3 states that grandfather you in if you hold a card from another state those states are Montana, Michigan, and Massachuttes. hopefully that was help full.

i think most Dr. inform you that you need to have a state ID or residence before they will even give you the recommendation for any MMJ.