It seems that NOAA and Titanic LTC are heading for a court battle after an International agreement over who owns the wreckage and what is permitted by this treaty on the salvage of artifacts.
Personally, I think that NOAA and the UK have no authority as she lies even outside the US EEZ (exclusive economic zone), and is deep enough that only well funded expeditions are able to mount any sort of salvage. Possession of the wreck is still protected by the law of the sea that has been reaffirmed multiple times.
Wreck of Titanic to be protected in treaty signed by UK and US
Personally, I think that NOAA and the UK have no authority as she lies even outside the US EEZ (exclusive economic zone), and is deep enough that only well funded expeditions are able to mount any sort of salvage. Possession of the wreck is still protected by the law of the sea that has been reaffirmed multiple times.
Wreck of Titanic to be protected in treaty signed by UK and US