Both countries are signatories to the Nuclear Non-Proliferation Treaty.

两个国家都是《防止核扩散条约》的签约国。

《柯林斯英汉双解大词典》

"There is nothing binding in the Rome Statute on non-signatories to apprehend someone against whom there is an arrest warrant.

VOA: standard.2009.03.23

Non-signatories to the deal, both black and Arab, are reportedly splintering and the fighting continues.

NPR: Darfur Casts Shadow Over Khartoum's Ambitions

Even if non-signatories did not have a chemical weapons capability at the moment of U.S. signature, do we believe they will not obtain one subsequently?

CENTERFORSECURITYPOLICY: Center for Security Policy | Submitted Testimony Of Frank J. Gaffney, Jr. Before A Joint Hearing Of The Senate Governmental Affairs Committee And The Permanent Subcommittee On Investigations

The Non-Proliferation Treaty calls on the signatories to move towards dismantling their nuclear weapons.

NPR: Weak Prospects for Nuclear Nonproliferation Efforts