The civil protection agency said emergency crews will, however, continue to inspect the part of the ship that is above the water line and use specialist equipment to check whether there could be any corpses on the sea bed.
The "Costa Concordia" had more than 4,000 people on board when it capsized off Tuscany on January 13.
Seventeen people have been confirmed dead and another 15 are still missing.
Experts say work to recover the vessel may take up to 10 months.
Compiled from agency reports