(a) The regulations in this subpart are effective December 24, 2013, through December 24, 2018.
(b) The following definitions are utilized in this subpart:
(1) Uncommon Stranding Event (USE)--A stranding event that takes place within an OPAREA where a Major Training Event (MTE) occurs and involves any one of the following:
(i) Two or more individuals of any cetacean species (not including mother/calf pairs), unless of species of concern listed in paragraph (b)(1)(ii) of this section found dead or live on shore within a 2-day period and occurring within 30 miles of one another.
(ii) A single individual or mother/calf pair of any of the following marine mammals of concern: beaked whale of any species, Kogia spp., Risso's dolphin, melon-headed whale, pilot whale, humpback whale, sperm whale, blue whale, fin whale, sei whale, or monk seal.
(iii) A group of two or more cetaceans of any species exhibiting indicators of distress.
(2) Shutdown--The cessation of active sonar operation or detonation of explosives within 14 nautical miles of any live, in the water, animal involved in a USE.