Over the past couple of years, we"ve seen some amazing footage and countless videos captured by drones. As popularity and accessibility of unmanned aerial system (UAS) have increased, mainly due to their affordability, there have also been increases in issues surrounding them. Naturally, the Federal Aviation Administration (FAA) has been aware of these issues and after several months, has formerly announced its plans to monitor the growing number of UASs.
Starting December 21st, those currently owning or purchasing a new UAS will be required to register the vehicle with the FAA. The registration cost will be $5 USD, but the fee will be temporarily waived until January 20th, 2016. Once registered, you will be issued a unique registration number that must be adhered in some manner and legible on the UAS. Naturally, this is for easy identification in the event that inspection or identification is necessary.
If you have more questions in regards to registration, be sure to hit the FAA website.
Source: Federal Aviation Administration via The Verge