This Decree completely prohibits the fishing for Greenland halibut as main catch as otherwise provided in the areas defined in Decree No. 6 of 1977 concerning fish protection zones of Svalbard. It applies to Norwegian and foreign commercial fishing vessels of any type and support vessels including vessels for experimental fishing and exploration. Norwegian and Russian vessels may fish for Greenland halibut in the fisheries protection zone of Svalbard according to an established fish quota scheme. Article 4 allows for 12 percent bycatch in single catches and 7 percent mix of Greenland halibut in landings of other species. Infringement, caused by either intentional or negligent behaviour, shall be punished in accordance with sections 61 and 64 of the Marine Living Resources Act. Assistance in fishing or attempt to fish shall be regarded as fishing.