The changes were chiefly focused upon preventing the recurrence of the large-scale industrial actions of the 1970s, but were also intended to ensure that the consequences for the participants would be severe if any future action was taken.
Os cambios foron principalmente enfocados a previr a recorrencia das accións industriais de grande escala do pasado, pero tamén intentaban asegurar que as consecuencias para os participantes fosen severas se se tomaba unha acción nun futuro.