The March 2011 Japanese Tsunami is estimated to have swept about 5 million tons of debris into the ocean off the coast of Japan. Of that, it is expected that 70 percent of the debris sank, leaving 1.5 million tons floating in the Pacific Ocean. It is uncertain how much of that floating debris continues to float or has already washed ashore. The debris from the Japanese tsunami is not in a large mass but is scattered across the North Pacific in an area and some has already made its way to the beaches within the NANOOS region. Federal and local efforts are underway including conducting computer modeling, collecting at-sea observations, and monitoring U.S. West Coast beaches to assess and plan for the arrival of tsunami debris on West Coast beaches. Federal, state and local partners are working together to reduce possible impacts to our natural resources and coastal communities including mitigating any hazards to navigation, pollution and non-native species threats and impacts to safety or public health.