Italian shipping company B. Navi Ship Management Services and Chief Engineer Dushko Babukchiev pleaded guilty in connection with the illegal dumping of oily sludge, bilge wastes and oil contaminated ballast water from one of the company’s ships, the M/V Windsor Castle, a 27,000 gross-ton bulk carrier vessel, Assistant Attorney General Ronald J. Tenpas, U.S. Attorney Donald J. DeGabrielle Jr., and U.S. Coast Guard Captain James E. Tunstall announced. B. Navi Ship Management Services pleaded guilty on Feb. 7, 2008, to a two-count criminal information charging it with violation of the Act to Prevent Pollution from Ships (APPS) and making materially false statements to the U.S. Coast Guard. Chief Engineer Babukchiev pleaded guilty on Feb.