I've had to navigate that and make use of listed exemptions to that, for sending thermal cameras i bought from israel- BACK to israel for repair- because of ITAR.
Other than that, you can do what you want in-country with a high quality thermal-and the US can import others who make stuff that high quality, without issues
Hey, wait... are you the person on the EEV Blog Forum who wrote about your saga of trying to figure out how to legally ship your camera to Israel for repair? That was also a ThermApp, no?
Didn't think that was too notable, but i guess i'm the only person ever who did the process so it stands out when someone talks about it, huh? lol