Oman Sultani Decree No. 34/2020 has been issued Ratifying the Convention on Mutual Administrative Assistance in Tax Matters The Decree was issued on 25 March 2020 and came into force on its date of publication in the Official Gazette. Text amended by the provisions of the Protocol amending the Convention on Mutual Administrative Assistance in Tax Matters, came into force on 1 June 2011. Under this convention countries give assistance to each other on tax matters. This assistance can include exchange of information, help with recovery of tax claims and conservancy measures.