The Conference of Peripheral Maritime Regions (CPMR) is an organisation bringing 150 regions from 24 States from the European Union and beyond, which advocates for a more balanced development of the European territory. Strong of its experience in maritime affairs, the CPMR is an observer to the OSPAR Commission. Among the six geographical commissions of the CPMR, the North Sea Commission and the Atlantic Arc Commission particularly contribute to the work of the OSPAR Commission, due to their geographical scope and the engagement of their member regions to protect and conserve the marine environment of the North East Atlantic Ocean.