Active Sonar and Marine Mammals: Chronology with References [Updated June 22, 2005] [open pdf - 36KB]
"The deployment of active sonar by the U.S. Navy and its potential impacts on marine mammals has been an ongoing issue of intense debate; regulatory, legislative, and judicial activity; and international concern. This report provides a chronology of significant events and documents since 1994. It will be updated as events warrant."
CRS Report for Congress, RS22158