There's one important point before beginning, and that's about usage. Previous drone laws required strict constraints on drones used for commercial reasons, and were very lenient for model airplane hobbyists. If someone uses drones for business, each drone will need to be registered. If someone just has a lot of drones, and they just fly them within the law and for fun, they’ll probably be able to take advantage of the special registration rule for model airplane enthusiasts in the new registration statute. It specifies that “An individual owner registering small unmanned aircraft operated exclusively as model aircraft must pay a single fee of $5 for the issuance of a Certificate of Aircraft Registration,” which serves as registration for their entire fleet. This works not just for model airplanes, but for any drones flown purely for hobbyist reasons, rather than commercial ones.