DRDC Atlantic in partnership with Akoostix has been awarded a contract to conduct a survey and review of active acoustic monitoring (AAM) technologies and methods. The contract, funded by the Joint Oil and Gas Industry Programme (JIP) on Sound and Marine Life, has been motivated by increasing regulatory requirements for oil and gas companies to monitor marine mammals at sea during exploration and production (E&P) activities, in particular those that generate significant amounts of acoustic energy. AAM is being investigated as a way of addressing the shortcomings of other monitoring methods, such as visual and passive acoustic monitoring, which are less effective in low visibility situations and when mammals are not vocalizing.