Grosseto, September 10 - Authorities gave approval Tuesday to begin steps that should lead to the safe removal of the sunken Costa Concordia cruise ship. Testing is expected to begin immediately that should lead to a rotation of the hull of the submerged cruise ship next week. If all goes as planned, that rotation could be completed by month's end, a key step in the process of eventually lifting the massive ship off the rocks of Tuscany's Giglio Island, where the Concordia sank killing 32 people in January 2012. Much more time will be needed, however, before the Concordia can be actually removed from the area around Giglio, officials have said. But rotating the hull is expected to make the wreck more stable and ensure it can be removed, possibly next spring.