No, it is not recognized as a Treaty. The Budapest Memorandum, signed in 1994, was never ratified by the U.S. Senate, a prerequisite for a treaty to become part of U.S. domestic law under Article VI of the Constitution (the Supremacy Clause). Without ratification, it doesn’t have the status of "supreme Law of the Land" that would allow its provisions to be directly enforced or challenged in U.S. courts. It’s an executive agreement, binding only as a political commitment, not a legal one within the U.S. system.