What is the difference between 14 CFR Part 107 and 14 CFR Part 48?

Part 107 ("Small Unmanned Aircraft Systems"): Classification, certification, and operational limitations and applies to the operation of certain civil sUA within the NAS for PURPOSES OTHER THAN HOBBY AND RECREATION. Part 48 ("Registration and Marking Requirements for sUAS"): Applies for all operations of an sUAS over 0.55 lbs, whether for work or your own enjoyment.