United Parcel Service announced this week that it had received a certification from the Federal Aviation Administration to use drones to deliver medical packages at campuses across the country.

The certification will allow U.P.S. to use multiple drones to deliver health care supplies within federal regulations and to fly drones beyond the visual line of sight, according to a statement from the F.A.A.

For the past year, U.P.S. has been collaborating with the F.A.A. flying drones at the WakeMed campus in Raleigh, N.C., delivering medical packages — including blood samples and tissues — to different buildings on the property, according to Scott Price , the chief strategy and transformation officer at U.P.S.

During its yearlong trial period, he said, U.P.S. flew about 1,000 single-operator drone flights at the WakeMed campus.