The Regional Directorate for Sea Affairs, created in October of 2010, takes on all competences pertaining the sea and the maritime public domain once taken on by the the cabinet of the Regional Secretary for the Environment and the Sea and by the Regional Directorate for the Environment and the Regional Directorate for Land Planning and Water Resources.

Regional Implementing Decree No. 17/2010/A from the 21st of September - Alters the Regional Implementing Decree No.25/2008/A from the 31st of December, which approves the X Regional Government organization.