The Medicare Coverage Database (MCD) contains all National Coverage Determinations (NCDs) and Local Coverage Determinations (LCDs), local articles, and proposed NCD decisions.
USS Constitution. Launched in Boston in 1797, the oldest commissioned warship afloat earned her nickname Old Ironsides during the War of 1812 when she fought the British frigate HMS Guerriere. During this historic battle, cannonballs fired at USS Constitution appeared to bounce off, causing one of her crew to remark that her sides were made of iron.
150518-N-OG138-191 CHARLESTOWN, Mass. (May 18, 2015) USS Constitution enters Dry Dock 1 in Charlestown Navy Yard to commence a multi-year planned restoration period. This is Constitution's first time in dry dock since its 1992-1996 restoration.