Categories Royal Decree Royal Decree 87/89 Granting Omani Nationality 1989/87 87/1989 89/87 87/89 Post author By admin Post date September 13, 1989 Arabic Auto Translate Published in Official Gazette 415 issued on 16 September 1989. ← Royal Decree 80/89 Amending the Law on the Regulation and Promotion of Industry of 1978 → Royal Decree 90/89 Renewing Membership in the Board of Governors of the Central Bank of Oman