BSTDB operations will require that, as a minimum, national environmental standards be met. In specific instances where standards are absent or considered insufficient to meet the principles of its Environmental Policy, then internationally accepted environmental standards may be applied. These include standards commonly used by the World Bank Group, other international financial institutions and the European Union and International Conventions such as the Convention on the Protection of the Black Sea Against Pollution (21 Apr 1992). If these standards cannot be met by the time of Board approval, the Bank will propose that corrective measures, in the form of an Environmental Action Plan, be included in the operations documentation.