You do not need a license for recreational use but you should still make sure you're not flying in restricted/prohibited areas. You will need a FAA Part 107 license if you plan on making money with your drone or get caught and pay a fine. Also if you're flying a drone that's 0.55 lbs and above you should register it with the FAA and 55 lbs is the maximum drone weight limit for a drone to be flown by a license drown pilot. Hope that answers your question...