In a ruling dated July 16, the Constitutional Court denied the Bizkaia Provincial Council the right to appear as a party to the appeal on grounds of unconstitutionality filed by the Regional Parliament of La Rioja, the Regional Cabinet of Castilla y León and the Regional Parliament y of Castilla y León against Public General Act [Ley Orgánica] 1/2010 of February 19 amending the Public General Acts of the Constitutional Court and the Judiciary, upholding the defence brought by the legal representatives of the state of lack of authority to bring appeals on grounds of unconstitutionality.

On the same date the Constitutional Court also agreed to the appearance of the Basque Government as a party in the same proceedings, though this does not imply any back-dating of actions, so it is ruled that no period for allegations need therefore be given since an estoppel applies. This will prevent the statements made in the appeal document on the substance of the matter raised from being taken into account