US trade sanctions are restrictions imposed by the government on individuals, entities, or countries to achieve specific foreign policy goals. They are enforced through laws and regulations that prohibit US individuals and companies from engaging in certain activities with sanctioned entities.
OFAC is a US Treasury office that enforces economic and trade sanctions based on US foreign policy and national security goals. They maintain the SDN List of sanctioned individuals, entities, and countries. It's important for individuals and companies to check the list before conducting business with others to avoid legal consequences.
For more information check out the website of OFAC
For more information on trade Sanctions Lists check the Sanctions List Search