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Designation of the AT1 Group of Transient Killer Whales as a Depleted Stock Under MMPA


Marine Mammal Protection Act
Action Status
Final Rule
Affected Species


NOAA Fisheries issues a final rule to designate the AT1 group of transient killer whales as a depleted stock of marine mammals pursuant to the Marine Mammal Protection Act (MMPA). This action is based upon a status review conducted by NOAA Fisheries in response to a petition to designate as depleted a group of transient killer whales in Alaska (known as the AT1 group). The biological evidence indicates that the group is a population stock and that the stock is depleted as these terms are defined in the MMPA. This action is intended to promote the goals and objectives of MMPA.

Last updated by Alaska Regional Office on 06/30/2022