The development of an entirely new commercial standard for “Underwater Noise Measurement of Ships” will commence in early 2007. ANSI-Accredited Standards Committee S12 Committee on Noise recently voted unanimously to form a Working Group (WG) for the development of an underwater noise measurement standard. Currently, no voluntary consensus standard exists for performing underwater noise measurements of ships. For many years, the field of underwater noise from ships has been the exclusive specialty of the Navy. However, non-navy vessels are looking to be just as quiet so that they can perform better science. “Green Ships” are being conceived in order to have less emission into the ocean.