Categories Ministerial Decision Ministry of Environment: Ministerial Decision 4/91 Distributing the Responsibilities Arising from the Implementation of the Protocol concerning Marine Pollution 1991/4 4/1991 91/4 4/91 Post author By admin Post date March 31, 1991 You do not have a valid subscription to view this content, please view our pricing page to subscribe or login if you already have a paid account. Username or E-mail Password Remember Me Forgot Password Tags Ministry of Environment ← Royal Decree 31/91 Establishing a Supreme Committee for Vocational Training and Work and Determining Its Competences → Royal Decree 38/91 Granting Omani Nationality