How are they different, you may ask? Well, safety and liabilities are vastly different compared to the states. In America, individual participants are required to sign a liability notice, which prevents the participant from suing the company if they are injured or something of that sort happens while on the ATV. On Fuerteventura only 1 person of the entire group signs something and it sure did not look like a limited liability notice. Your drivers ID is individually checked in the states while they assume you have one in Fuerteventura. They also assume you’re 18 or over. The speeds at which you can ride an ATV are much lower in the states than in Fuerteventura (depending on which ATV attraction you attend).
Some things I will point out from my ATVing experience is that you’ll be traveling on sandy, bumpy roads, which as a result will kick up a LOT of dirt. Bring a bandana for your mouth and nose so you’re not blowing sand snot out of your nose midway through the trip. The tours on the island also cross many different terrain from sandy deserts to beaches and sand dunes so bring a durable (and sand proof) camera for the journey. What I found most surprising is how part of the island can be cloudy/stormy yet an hour into ATVing the weather drastically changes to full on beaming sunshine like in the photos below. I kid you not, this is the same island.
P.S. expect to take a long bath to get the sand and dust out of your hair and skin. However I was impressed at what ATVing can do to "contour" your skin. Definitely better than my makeup skills!