How did the US government control price increases for scarce goods?

During periods of scarcity, such as during World War II or the 1970s oil crisis, the U.S. government implemented price controls to curb inflation and stabilize the economy. This involved setting maximum prices for essential goods and services through the Office of Price Administration (OPA) or similar agencies. Rationing systems were also established to ensure equitable distribution of limited resources. These measures aimed to prevent hoarding and ensure that consumers could afford basic necessities despite supply shortages.