WASHINGTON — The Biden administration proposed June 15 that future planes produce lower levels of greenhouse gas emissions before they can be certified by federal regulators.

Commercial U.S. drone flights are set to receive a huge boost as soon as the week starting Dec. 28 with requirements that most of the devices must transmit a radio beacon with a digital license plate.

Boeing Co. is plotting a low-key comeback for the 737 Max, the grounded jetliner that has spent almost two years engulfed in controversy and tragedy after two fatal crashes, said people familiar with the matter.

Lawmakers who criticized regulators over the way they approved the Boeing 737 Max will propose changing the way that the Federal Aviation Administration certifies new plane designs and uses private-sector employees to perform safety analysis.

The top U.S. aviation regulator plans to test fly Boeing Co.’s grounded 737 Max on Sept. 30 in an attempt to show an antsy public that proposed fixes will be safe, according to a person familiar with the plans.

Retail behemoth Amazon .com Inc. took a big leap toward delivering goods from the sky by becoming one of only a handful of companies certified by the U.S. government to operate as a drone airline.

Boeing Co.’s lousy year got even worse in July, as lost orders for the grounded 737 Max topped 400 and the coronavirus pandemic stymied shipments of the 787 Dreamliner.

Federal regulators on Aug. 3 outlined a list of design changes they will require in the Boeing 737 Max to fix safety issues that were discovered after two deadly crashes that led to the worldwide grounding of the plane.

Boeing Co. 737 planes in storage because of the coronavirus pandemic are at risk of losing power in both engines when they fly again and must be inspected, aviation regulators said.

The fatal crash of a cargo plane last year was caused in part by the failure of the U.S. federal government to establish a reliable system of weeding out unqualified airline pilots, investigators concluded.