US accepts nine ballast water systems

摘要

Nine ballast water treatment systems have been accepted in the United States to allow shipowners to comply with new ballast water regulations. The US Coast Guard announced on 15 April that vessel operators could use any of the systems to treat their ballast water discharges in lieu of ballast water exchange - the flushing out of ballast water tanks with deep sea water - while they undergo type-approval testing to federal standards.