Laws governing ebikes vary widely. Please research your region’s rules and regulations. Below are a few links that may help.

U.S.A.

https://www.peopleforbikes.org/electric-bikes/state-laws

State Electric Bicycle Laws | A Legislative Primer (ncsl.org)

Canada

Electric bicycle – FAQ (gov.on.ca)

Cycling regulations, restrictions and rules of the road - Province of British Columbia (gov.bc.ca)

New policy clarifies e-bike use on designated recreation trails | BC Gov News

Air Travel Restrictions

The batteries in Gen3 eBikes are too large for carryon or checked luggage.

Lithium ion (rechargeable) batteries are limited to a rating of 100 watt hours (Wh) per battery. These limits allow for nearly all types of lithium batteries used by the average person in their electronic devices. With airline approval, passengers may also carry up to two spare larger lithium ion batteries (101-160 Wh) or Lithium metal batteries (2-8 grams). 

PackSafe for Passengers (faa.gov)