Buy American Act

The Buy American Act of 1933 applies to direct purchases by the U.S. federal government for public construction projects. It requires the federal government to procure only domestically produced materials unless a waiver has been granted.

However, Canadian goods exporters aren’t subject to Buy American requirements. The U.S. Trade Agreements Act waives these requirements for countries that are party to the WTO (World Trade Organization) Agreement on Government Procurement (GPA) and/or have a free trade agreement with the United States. Since Canada has the Canada-United States-Mexico Agreement (CUSMA) trade agreement, Canada falls squarely into that last category. In most cases, therefore, the Buy American Act will be a non-issue for Canadian exporters.

Source:  The Buy American Act and Buy America Provisions (tradecommissioner.gc.ca)