 The banning of their exportation resulted in automatic prohibition of importation to the United States under Public Law 91-135 (1969).A 1971 Ecuadorian decree made it illegal to damage, remove, alter, or disturb any organism, rock, or other natural object in the National Park.With the establishment of the Galapagos National Park and the CDF in 1959, a review of the status of the tortoise populations began.