The measure will take effect 31 October and extend through 30 October 2015.

A National Marine Fisheries Service spokeswoman tells Recharge that the IHA allows a “very temporary change” in the behavior of marine animals, and does not authorize their physical injury or death.

That said, the Marine Mammal Protection Act does allow, upon request, the incidental or unintentional take of small numbers of marine mammals by US citizens who engage in a “specific activity” other than commercial fishing within clearly specified region.

This