If your talking about that porosus x niloticus in the classifieds, it should be fine ... Niles are threatened with special rules allowing interstate commerce ... According to USFWS (there records anyway) all Porosus in the USA originated from non endangered appendix 1 populations and they are not regulated by the ESA.

Verify it with Mike Carpenter at USFWS, thats what he told me about Salties i the USA, he also told me that he doesnt allow porosus to be added to CBW permits because of this fact.
-----
Great Lakes Zoological