1. Registration is mandatory in the United States.2. If you already own a drone, you must register before your first flight; but again, if you register in the first 30 days it’s free.4. Users must be at least 13 to register online.5. The registration fee is $5, but—again—registration will be free until January 20th. It’s good for three years.6. Right now you’ve got to register directly through the FAA. They’ll release an API in the spring (they’re targeting April) that we’ll immediately integrate into the Solo app. Until then you’ll have to 7. All the information you need provide is your name, home address, e-mail address and the make and model of your drone. This generates a “proof of ownership,” including a Unique Number, which you must mark on your drone in a place you don’t need a tool to access. You’ll be able to use the serial number of your drone (found in Solo’s battery compartment) and avoid marking up your Solo.8. This registration process only applies to hobby and recreational use.