This is an agreement signed in 1993 to reduce tariffs between the united states

Answer: The answer is:

The North American Free Trade Agreement (NAFTA)

Explanation:

The statement is incomplete. It should say:

This is an agreement signed in 1993 to reduce tariffs between the United States, Canada, and Mexico.

Preliminary agreement on the pact was reached in August 1992 and it was signed by the three leaders on December 17. NAFTA was ratified by the three countries' national legislatures in 1993 and went into effect on January 1st 1994.