There is still time to register for the first underwater acoustics webinar in the five-part, free webinar series the Discovery of Sound in the Sea (DOSITS)  <http://www.dosits.org/>Team is hosting for the international regulatory community. The webinar topics will include basic science concepts related to underwater sound, marine animal sound production/reception, and the potential effects of sound on marine animals. Content will all be derived from peer-reviewed research. Each webinar will last approximately 60 minutes and be comprised of two, 15-20 minute presentations, followed by a period of facilitated discussion. The first webinar of this five-part series will review sound movement/propagation and sound measurement/signal levels as well as ocean noise measurement, variability, and noise budgets. It will be held on Friday, November 13, 2015, at 12:00pm ET. All interested individuals must register in advance for this webinar. To register, please visit the DOSITS webpage, Webinar Series for Regulators of Underwater Sound <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/> (http://www.dosits.org/resources/all/decisionmakers/ircwebinar/ <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/>), and follow the registration link provided. ** The DOSITS Team is aware that some are having difficulty registering for these webinars; please know the site and service being used is secure. However, if you are having registration issues due to apparent security blocks from your local computer, please send your name, email address, and country of work to holly_morin@uri.edu** Please note, if you are not able to participate in the webinar on Friday, November 12, 2015, you will be able to view an archived version of the webinar (video and audio) on the DOSITS website (through the Webinar Series for Regulators of Underwater Sound <http://www.dosits.org/resources/all/decisionmakers/ircwebinar/> page) along with webinar presentations and a listing of related DOSITS website content links. Pre-registration is not required for viewing archived webinars. 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 <mailto:holly_morin@uri.edu>.