A:Answer No, hobby drones do not need to be registered with the FAA; BUT, I would highly recommend that you do (I think it's like $5 and you write down the number on tape and stick it in the battery bay.
From the FAA Website:
Registration
Why do I need to register my UAS?
Federal law requires that small unmanned aircraft weighing more than .55 pounds and less than 55 pounds that do not fly exclusively under the Special Rule for Model Aircraft, be registered with the FAA and marked with a registration number, either by registering online or by using the legacy paper based registration process.
What is the difference between registering a UAS flown for under the Special Rule for Model Aircraft vs. UAS not flown as model aircraft?
If you operate your UAS exclusively under the Special Rule for Model Aircraft, you can voluntarily use the web-based registration process to register once and apply your registration number to as many UAS as you want.
Unmanned aircraft flown not as model aircraft must be registered individually by the owner, and each registration costs $5. Registrants must supply their name, address, and email address, in addition to the make, model, and serial number (if available) for each UAS they want to fly.
