Categories Royal Decree Royal Decree 30/2015 Establishing the Oman Center for Governance and Sustainability and Issuing Its System (Repealed) 2015/30 30/2015 Post author By admin Post date July 14, 2015 This item was repealed by Royal Decree 52/2025. Arabic Auto Translate Published in Official Gazette 1107 issued on 21 July 2015. ← Royal Decree 31/2015 Ratifying the Agreement between the Sultanate of Oman and the Swiss Confederation for the Avoidance of Double Taxation with Respect to Taxes on Income → Royal Decree 29/2015 Appointing Judges to the Supreme Court