The U.S. National Marine Fisheries Service has issued an incidental harassment authorization to Lamont-Doherty Earth Observatory in collaboration with the National Science Foundation (NSF), to incidentally take, by level B harassment, 44 species of marine mammals, and to incidentally take, by Level A harassment, 26 species of marine mammals, during three marine geophysical (seismic) surveys in the southeast Pacific Ocean. This Authorization is effective from August 1, 2016, through July 31, 2017.