The dealer company, as a responsible for several files, can treat the data that restrain themselves there, without harm that the Town Council as a headline of the service is the last responsible for this information. Any communication of data of the Census or of other files of the Town Council is a communication of data subjected to the regime of the LOPD (articles 11 and 21), except if an order of the treatment (article 12 of the LOPD and articles 20 to 22 of the RLOPD) is established. The formalization of the order can be made in the specific clauses included in the contract, if it is proper through an annex or addendum.