美国参议院在1999年草率地做出不予批准的带有浓重党派色彩的决定，并且此后一直没有重新考虑该条约，这给了其他七个必须批准CTBT的国家拖延的借口。
The US Senate’s rushed and highly partisan 1999 vote against ratification – and its failure to reconsider the treaty since then – has given the seven other states that must ratify the CTBT a reason for delay.