US President Joe Biden is set to issue an executive order that aims to increase the number of background checks conducted before firearm sales.
It aims to move the US "as close to universal background checks as possible without additional legislation".
The Democratic president will sign the measure during a visit Tuesday to Monterey Park, California, where a gunman killed 11 people in January.
Action on gun control appears unlikely in a divided Washington.
Last year, Mr Biden signed a cross-party gun violence reduction measure into law and he has repeatedly asked Congress to do more about what he calls an "epidemic".
But his call for an assault weapons ban, universal background checks on gun sales and repealing gun manufacturers' immunity from prosecution are unlikely to make headway while Republicans control the US House of Representatives.
Separately, the measure asks the Federal Trade Commission to issue a report on how gun manufacturers target civilians, especially minors.
It also aims to reduce the theft or loss of firearms during shipment between dealers, and mandate better reporting of ballistics data so law enforcement can match shell casings to the guns from which they were fired.
Reaction to the executive order was largely positive on Tuesday. The Everytown gun control coalition wrote it "would improve community safety, hold the gun industry and rogue gun dealers in our communities accountable, and save lives", while the Moms Demand Action grassroots group added that it will "double down on the progress made" in last year's bill.