Home1999 Treaties and Agreements ...Organization for the Prohibition of Chemical Weapons (13022) – Tax Reimbursement Agreement hide Organization for the Prohibition of Chemical Weapons (13022) – Tax Reimbursement Agreement TIAS Office of Treaty Affairs February 25, 1999 Taxation: Reimbursement Agreement signed at The Hague February 25, 1999; Entered into force February 25, 1999. With annex. Download Attachment [359 KB] Tags Organization for the Prohibition of Chemical Weapons Taxation Treaties