As a compromise, the Spanish presidency suggested a threshold of two million passenger movements, but that proposal was opposed by a majority of member states, which fear that lowering the threshold might entail a major administrative burden.
Kompromissina soovitas eesistujariik Hispaania seada künniseks kaks miljonit reisijat, kuid selle ettepaneku vastu oli enamik liikmesriike, kes kardavad, et künnise alandamine võib kaasa tuua olulise halduskoormuse.