The statutes of autonomy are the basic institutional rule of each of the autonomous communities. They Contain the identification of the community, government institutions, and powers assumed within the constitutional framework.
After the adoption of the 17 autonomy statutes, which took place between 1979 and 1983, almost all of these statutes have been modified. As established in Article 147.3 of the constitution, these reforms are made in accordance with the procedure laid down in each of them and require the approval of the General Cuts through Organic law.
These changes have occurred in successive stages and, at all times, have had a different purpose and motivation.