Could the Spanish Constitution be amended by the abbreviated legislative procedure in one single reading?

This paper examines the essential elements of the abbreviated legislative procedure in one single reading, both in the Congress of Deputies and in the Senate. In particular, its transversal nature, the scope of its enabling preconditions and the limitations of the ius in officium that its application involves, all this for the purpose of being able to determine whether the reform of the Spanish Constitution of 1978 can be conducted by such a procedure, as has already happened in two reforms (of very different content) carried out to date: Article 13 (1992) and Article 135 (2011).