Designated National Authority. An organization; office, ministry, or other official entity, given responsibility by a Party to the Kyoto Protocol to review and give approval to projects proposed under the Clean Development Mechanism (see CDM). Establishing a DNA is one of the requirements of participating in the CDM. Its main task is to make assessments of potential CDM projects, determining whether they will contribute to sustainable development goals in the host country, and provide a letter of approval of this and other things to participants of the projects. The letter of approval is then submitted to the CDM Executive Board to support registration of the project.