The Convention on the Transboundary Effects of Industrial Accidents is a United Nations Economic Commission for Europe (ECE) convention signed in Helsinki, Finland, on 17 March 1992, that entered into force on 19 April 2000.
The convention helps its parties (states or certain regional organisations that have agreed to be bound by the convention) to prevent industrial accidents that can have transboundary effects and to prepare for, and respond to, accidents if they occur.
The Conference of the Parties was constituted as the convention's governing body at its first meeting in Brussels on 22–24 November 2000.
At its third meeting, in 2004, the Conference adopted an assistance programme to support the countries from Eastern Europe, Caucasus and Central Asia and South Eastern Europe in implementing the convention.
[1] As of November 2023, the convention had 42 parties, including the European Union, Russia, and most other countries in Europe, as well as Armenia, Azerbaijan and Kazakhstan.