On February 4, 1985, the Convention was opened for signature at United Nations Headquarters in New York. At that time, representatives of the following countries signed it: Afghanistan, Argentina, Belgium, Bolivia, Costa Rica, Denmark, Dominican Republic, Finland, France, Greece, Iceland, Italy, Netherlands, Norway, Portugal, Senegal, Spain, Sweden, Switzerland and Uruguay. Subsequently, signatures were received from Venezuela on February 15, from Luxembourg and Panama on February 22, from Austria on March 14, and from the United Kingdom on March 15, 1985. I don't see the United States on that list. Or any information about post signing ratification.
Also, even if it was signed and ratified by the US, a word, used as a legal term of art, can be defined by law or treaty, but it isn't defined by law or treaty as a matter of normal language. |