In theory, the Soviet Constitution described the regime's position regarding nationalities and religions. It stated that every Soviet citizen also had a particular nationality, and every Soviet passport carried these two entries. The constitution granted a large degree of local autonomy, but this autonomy was subordinated to central authority. In addition, because local and central administrative structures were often not clearly divided, local autonomy was further weakened. Although under the Constitution all nationalities were equal, in practice they were not treated so. Only fifteen nationalities had union republic status, which granted them, in principle, many rights, including the right to secede from the union.