State regulations
- Spanish Constitution (articles 3 and 20.3).
- Law 39/2015, of 1 October, on the Common Administrative Procedure of Public Administrations (arts. 13.c and 15)
- Royal Legislative Decree 5/2015, of 30 October, approving the revised text of the Law on the Basic Status of Public Employees
- Royal Decree 489/1997, of 14 April, regulating the publication of laws in the co-official languages of the Autonomous Communities.