Executive Agreements
In addition to treaties, which may not enter into force and become binding on the United States without the advice and consent of the Senate, there are other types of international agreements concluded by the executive branch and not submitted to the Senate. These are classified in the United States as executive agreements, not as treaties, a distinction that has only domestic significance. International law regards each mode of international agreement as binding, whatever its designation under domestic law.
The challenge of obtaining two-thirds vote on treaties was one of the motivating forces behind the vast increase in executive agreements after World War II. In 1952, for instance, the United States signed 14 treaties and 291 executive agreements. This was a larger number of executive agreements than had been reached during the entire century of 1789 to 1889. Executive agreements continue to grow at a rapid rate.
In recent years, the growth in executive agreements is also attributable to the sheer volume of business conducted between the United States and other countries, coupled with the already heavy workload of the Senate. Many international agreements are of relatively minor importance and would needlessly overburden the Senate if they were submitted as treaties for advice and consent