New regulations that apply to small unmanned aircraft systems (s-UAS) weighing less than 55 pounds will go into effect Aug. 27. However, rules that apply to the operation of UAS weighing more than 55 pounds will generally be covered under FAR Part 91-57A, according to Bob Lamond, NBAA’s director of air traffic services and infrastructure. “While s-UAS rules go into effect at the end of next month, rules governing standard UAS – those weighing more than 55 pounds - really won’t differ from those covering manned aircraft,” said Lamond, who serves on the FAA’s UAS Aviation Rulemaking Committee.