The Norwegian Oil Industry Association (OLF) and Federation of Norwegian Manufacturing Industries (TBL). Rev. 2, 2001-09-01. 126р. This NORSOK standard presents requirements to planning, execution and use of risk and EPA, with an emphasis on providing insight into the process and concise definitions. This standard covers analysis of risk and emergency preparedness associated with exploration drilling, exploitation, production and transport of petroleum resources as well as all installations and vessels that take part in the activity.