Slovenia, Croatia and Italy signed the 2000 Memorandum of Understanding on the Mandatory Ship Reporting System in the Adriatic Sea with the purpose of improving safety at sea.

SUCBAS is a cornerstone for sea surveillance, information exchange and co-operation within the Baltic Sea area and its approaches. The aim of the co-operation is to enhance Maritime Situational Awareness benefiting maritime safety, security, environmental and law enforcement activities in the region by sharing relevant maritime data, information and knowledge between the participants. The SUCBAS cooperation comprises Finland, Sweden, Denmark, Germany, Estonia, Latvia, Lithuania, Poland and United Kingdom. The initiative is led by the navies of these countries. In recognition of the fact that responsibility for of maritime surveillance, maritime safety, maritime security, the maritime environment and maritime law enforcement are implemented differently in each country, SUCBAS information is shared among national governmental institutions with a maritime responsibility regardless if civil or military, at their discretion.

This operational cooperation plan applies to large-scale spill response (oil, HNS). It establishes the technical conditions and procedures for requests for assistance between the General Direction of the Maritime Authority (Portugal) and the Maritime Prefecture of the Atlantic (France) regarding the deployment and activation of assets. The applicable area is between the parallels 40°N and 46°N, and from the meridian 14°W, to the Portuguese, Spanish and French coasts. The parties may agree to extend it beyond this area in case of exceptional situation.

Through this bilateral plan, the French and the Spanish authorities agree for joint action in the case of maritime rescue, assistance to ship in distress, and marine pollution in the Bay of Biscay. The area is delimited by parallels 42°30’N and 46°00’N, meridian 10°25’W, and French and Spanish coasts. A separation line marks the limits of the areas of initial responsibility.

This bilateral operational cooperation plan signed in 1972 and updated in 2016 schedules terms of collaboration between French and Spanish authorities in the field of maritime rescue, marine pollution and assistance to ships in distress in the Mediterranean Sea. It gives details on the availability of air and naval assets in an area delimited by French and Spanish SRR as well as in the specific area of the LION Plan.