Appeals court decision against the United Steelworkers of America, holding that the question of whether or not NAFTA is a treaty cannot be decided by the courts (decision dated February 27, 2001).

President Washington transmitted a Report of Secretary of State Jefferson. Jefferson advised that it is sometimes advisable to approve international accords by legislation instead of by treaty, because treaties may involve binding commitments, whereas legislation can be easily revoked.

Report from the Congressional Research Service discussing whether or not trade accords are treaties that must be approved by two thirds of the Senate.