Answer:
The Buy American Act
Explanation:
The Buy American Act (BAA) of 1933 requires that American government entities prefer US manufactured products. The law was signed by President Hoover on his last day at office during the Great Depression.
This law only applies to the purchase of products, not services. It requires that government entities must purchase domestic products or products from a list of authorized countries over a certain threshold, which is currently $3,500.