On 27 February 2003, Andorra deposited its instrument of accession to the Convention on the Prohibition of the Development, Production, Stockpiling and Use of Chemical Weapons and on Their Destruction (CWC).
2003年2月27日，安道尔交存了《关于禁止发展、生产、储存和使用化学武器及销毁此种武器的公约》的加入书。