Updated Dec. 28, 2020 9:25 pm ET U.S. regulators established industrywide requirements for remote identification of drones, along with new safeguards for flights over populated areas and at night, in a long-awaited effort to expand commercial use of the craft. The pair of final rules issued Monday is intended to promote eventual widespread home delivery of small packages and a multitude of other applications for pilotless vehicles that are currently sharply restricted. But with a single announcement, the Federal Aviation Administration is formally pivoting from approving case-by-case exemptions to setting broad safety standards the industry has long sought. The new approach, replacing stringent protections that currently bar practically all home-delivery options, goes into effect in two months, but some requirements are likely to take years to implement.