WATER CONSERVATION & ONBOARD PRODUCTION | Water Treatment 2018 NORWEGIAN CRUISE LINE HOLDINGS STEWARDSHIP REPORT GRAY WATER AND BLACK WATER To treat wastewater on board, all of our ships are equipped with internationally compliant wastewater treatment systems. Wastewater is run through these systems and treated prior to discharge, resulting in effluent that meets or exceeds international sewage regulations and many municipal wastewater facility standards. Ships built after 2001 have been installed with Advanced Wastewater Purification (AWP) systems. Our newest ships are equipped with the leading AWP technology that meets the stringent LEARN MORE Baltic Standards. BILGE WATER Wastewater collected in machinery and engine spaces is known as bilge water. To ensure bilge water compliance, all ships are equipped with an automatic stopping device and an oil content meter to analyze and record the oil content of the bilge. If the bilge water does not meet requirements, discharging is automatically stopped and the bilge water is reprocessed until the standards are met. Bilge water that cannot be discharged is collected and landed ashore to an approved vendor. During her 2018 dry dock, Oceania Cruises' MS Insignia underwent bow to stern renovations, including updating its systems to decrease the ship's environmental impact. A new Advanced Wastewater Treatment System was installed to meet the stringent Baltic Standards, and a Ballast Water Treatment System was also installed. 18