Any sort of cattle, either vaccinated or not, is allowed to access the Bardenas Reales always that, prior accessing, a certificate issued by the corresponding veterinary, and signed by the major, was presented, in which must be expressed that the cattle is healthy; the sick cattle shall be taken to the 'infirmary' areas, without being possible to take it out before its healthy status had been declared, and that any person is allowed to vaccinate its cattle inside the Bardenas at any time of the year but only inside the 'infirmary' area indicated by the permanent Committee, once the [cattle] owner had informed its President.