Legal regulations for eBikes

Hey everyone!

Just got my new folding eBike (a cool little Aventon Sinch!) and I'm super excited to take it on some trips, especially with camping season coming up. It got me thinking about the legal side of things, particularly when traveling between states or even just different cities. Are there any folding eBike specific regulations I should be aware of, beyond the usual Class 1/2/3 stuff, especially regarding transport on public transit or in different states? Would love to hear your experiences or any tips you might have!