I think here in Massachusetts, at least, there is regulation to the effect that fish sold to be served raw _must_ be frozen to kill parasites. Possibly it is sp

I think here in Massachusetts, at least, there is regulation to the effect that fish sold to be served raw _must_ be frozen to kill parasites. Possibly it is species-dependent, but I would make a guess that it is not. PS: turns out it is somewhat species dependent: http://www.mass.gov/eohhs/docs/dph/environmental/foodsafety/retail/sushi-guide.pdf http://www.mass.gov/eohhs/docs/dph/environmental/foodsafety/...