Regulators, decision makers, public affairs officers, industry representatives, and other members of the international regulatory community have a high need for training materials on underwater acoustics as well as instructional resources that can be quickly accessed and viewed. To meet this need, the *Discovery of Sound in the Sea (DOSITS) <http://www.dosits.org> **Team is facilitating a free, five-part webinar series for the international regulatory community on topics related to underwater sound.* Two webinars took place in 2015. The first reviewed science of sound concepts, the second, sound production and reception in marine animals. *Both of these webinars have been archived to the DOSITS website (**http://www.dosits.org/resources/all/decisionmakers/ircwebinar/ <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/>) and are available for review*. *PDFs of webinar presentations, as well as full webinar summaries, with associated DOSITS links, are also available for download.* Note: you do not need to register to view archived webinars and their associated materials. The third webinar in this 5-part series, and first webinar for 2016, will take place on *Wednesday, March 16, 2016, at 12:00 pm* (U.S. East Coast time). Dr.'s Dorian Houser and Brandon Southall will review the *potential effects of underwater sound on marine mammals.* *Interested individuals must register in advance for this webinar. To register please visit: **http://www.dosits.org/resources/all/decisionmakers/ircwebinar/registration/ <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/registration/>* To learn more about this webinar series and view other, upcoming webinar dates and speakers, please visit the DOSITS webpage, Webinar Series for Regulators of Underwater Sound <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/>*.* Questions? Please contact Holly Morin at holly_morin@uri.edu. This webinar series is being sponsored by the *American Petroleum Institute (API) <http://www.api.org>.* The American Petroleum Institute (API) is the only national trade association that represents all aspects of America’s oil and natural gas industry. *Discovery of Sound in the Sea* <http://www.dosits.org> (DOSITS; www.dosits.org) is a comprehensive, educational website on underwater sound, designed to provide accurate scientific information at levels appropriate for all audiences, including decision-makers.