FAA Regulation
When flying a drone, there is recreational and commercial flying. Per FAA, the commercial fly needs to follow the FAA Code of Federal Regulation (CFR) Part 107, and the recreational fly follows the Title 49 U.S.C 44809 and Community Based Organization (CBO) guideline. Recreational drone flyers need to pass TRUST, The Recreational UAS Safety Test, to test the safety and regulatory guidelines. Recreational drone fly also has to pass the Exception for Recreational Flyers test and register the drone if it weighs more than 0.55 pounds. Before a flight, the flyer can use Aloft to make LAANC (the Low Altitude Authorization and Notification Capability) requests.
Local Regulation
Drone flyers also have to check state and county regulations before flying. The best way is to download Aloft software to review and request permission to fly, as most national and state parks don't allow drones. Request a filming permit is needed several weeks before the visit.
Failing to follow the regulation can cause civil penalties. On Dec 17, 2020, a recent story was reported when FAA Slaps Drone Pilot With $182,000 Proposed Fine, the pilot is known as Youtube comedian PhillydroneLife.