You are most welcome to not believe me.
Whether you believe me or not is immaterial.
I am not a lawyer, but here goes ..
The FAA is Federal ( USA ) I understand.
IATA is the international body, with international jurisdiction, I understand.
Here's some IATA doco for you to read and absorb ( or seek proper qualified advice, which I cannot give );
https://www.iata.org/whatwedo/cargo/...nt-2015-en.pdf
OK all of that is great info for somebody that wants to ship a few Segways to have a vacation and not rent or whatever. If everyone will just read earlier posts last year-ish from me and others you will see the Federal regulations (CFR) that apply to those that use a Segway as an additive mobility device- along the lines covered in the ADA title 3 language from years ago.
Can't believe the uninformed banter by some here. Keep thinking its 'shipping lion batteries'. Its an accommodation granted by the ACAA that allows/encourages airlines to develop policies that provide safe transport of mobility devices - not just batteries! Most have, depending on the size of the aircraft. Just check with the airline, domestic and international. Many have Segway-specific reference info available to their res and CSAs.
It doesn't matter if you believe a shred of what you read here. Just call!!!
Good luck, whatever you decide.