Complex sentence: New regulations were added to the Office by Law 22439 of 1981 and a decree of 1994, but the current regulations are the Law 25871 of 2004 and the decree 616 of 2010.
Split into simpler sentences: New regulations were added to the Office by Law 22439 of 1981 and a decree of 1994. But the last and actual regulations are the the Law 25871 of 2004 and the decree 616 of 2010.