Brunei as of last week has become a full member to the Comprehensive Test Ban Treaty.
The Southeast Asian nation submitted its ratification documents on Thursday, nearly 16 years after becoming a signatory to the regime against nuclear testing, the Preparatory Commission for the Comprehensive Test Ban Treaty Organization said in a press release.
“This is not only a step towards a safer and more peaceful future in Asia. Brunei Darussalam has made an important contribution to ridding the planet of nuclear tests and nuclear weapons," CTBTO chief Tibor Tóth said in a press release.
The treaty has now been ratified by 158 nations. Entry into force requires ratification by 44 "Annex 2" nations that operated atomic energy or research reactors while participating in treaty negotiations during the 1990s. There are eight holdouts -- China, Egypt, India, Iran, Israel, North Korea, Pakistan and the United States.