Broadly speaking, national environmental law consists ofthe legislation, standards, regulations, institutions and administrations adopted to control activities damaging to the environment within a State. This would include framework environmental legislation, sectoral legislation and incidental legislation. Framework environmental legislation is a single law which contains a comprehensive system of environmental management. This would include the institutional issues such as which government authority will manage the environment, pollution control, enforcement, etc. Sectoral legislation addresses specific aspects of the environment and human activity such as a law establishing a national park or legislation to control factories. Sometimes countries have both sectoral legislation and framework legislation while other countries have one or the other or neither. Incidental environmental legislation refers to those laws that are not specifically intended to address environmental issues but do contain some elements that have an impact on environmental issues. This might include, for example, criminal legislation that contains a prohibition on polluting or tax laws that contain a tax rebate for installing pollution control devices in a factory. In some cases these national laws are a reflection of international norms or commitments and are adopted with the intent of implementing international environmental conventions. For example, legislation must be enacted at the national level to create a Management Authority to issue export permits for species protected under the Convention on the International Trade in Endangered Species of Wild Fauna and Flora (CITES). National environmental law is a mechanism for translating environmental and sustainable development policies into action at the national level.