Abandonment, dumping and uncontrolled disposal of waste becomes prohibited or restricted for obvious reasons. In Europe the member states are obliged towards the European Union to prohibit such actions. Oil on cuttings is potentially harmful to the marine life at least when it is a lot of oil on the cuttings.  Zero discharge of harmful substances to sea is implemented in an increasing number of countries and regions, including Angola, Kazakhstan and the Norwegian section of the Barents Sea. In the rest of the North East Atlantic the OSPAR convention prescribes a 1% limit regarding oil on cuttings. Presently there are restrictions most places around the world, but 15, 10 or 6.9 % restrictions are no longer regarded as sufficient, and more stringent requirement is expected in Asia, Africa and the Americas.