The Convention on Long-Range Transboundary Air Pollution (CLRTAP) of the United Nations Economic Commission for Europe (UNECE), also known as the Geneva Convention on Air Pollution, was adopted in Geneva on 13 November 1979. Fifty-one parties have signed the Convention, including all EU Member States, the EU Commission, many Eastern European and Central Asian states, as well as the USA and Canada. To date, the Convention has been stipulated in concrete terms by eight protocols containing legally binding mitigation targets.