NORFOLK (AP) -- The Navy has instituted new safety precautions after the drowning of a sailor who slipped from the top of a submarine at Norfolk Naval Station.

The Virginian-Pilot reports ( ) that sailors standing watch topside aboard Navy submarines are now required to wear life vests. An investigative report obtained by the newspaper through a Freedom of Information Act request also recommended that the naval station add trained divers to its emergency response team to improve future rescue and recovery efforts.

Twenty-one-year-old Seaman Rolando Acosta fell into the water while standing watch atop the fast-attack submarine Boise on July 6. The report says Acosta violated safety guidelines when he stepped off the nonskid surface of the submarine without first putting on a flotation device.

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