According to an article in today's NY Times:
The new regulations require all registered drones within 36 months to begin carrying a specific type of remote identification system that broadcasts over the internet.
Often finding an internet connection is not feasible in the locations where drone operators fly, Mr. Aitken said. According to his reading of the rules, if you don’t have cellular service or another way to connect to the internet, operators will have to limit flights to 400 feet laterally, which is roughly to the end of a block — and back.
Search and rescue missions often require going at least four times that distance, he said. “People will literally die from these rules,” he said, adding that other “industries that are thriving with drones like utility inspection, precision agriculture, land surveying, ranch management and even some construction management would suffer greatly” given that the rules undermine efficiency, which for many is part of the appeal of drones.
If true, I would think this could be a deal breaker for many legitimate applications.