On February 11th 2010, the Chamber of Deputies made the decision of validating the Real Decreto Ley 1/2010 de 5 de febrero (BOE Nº 43 y 32, respectively), generally known as “the decree of controllers”. This regulation has two main objectives. On the one hand, taking steps in order to make possible for new suppliers/providers to render aerial navigation, what releases this sector, while on the other hand, modifying some labour conditions from AENA’s air traffic controllers.