- European Pollutant Emission Register (EPER) and the European Pollutant Release and Transfer Register (E-PRTR) (Multilingual)
- European Pollutant Emission Register (EPER) (Multilingual)
- European Pollutant Emission Register (EPER) and the European Pollutant Release and Transfer Register (E-PRTR) (English only)
- North American Commission for Environmental Cooperation (CEC) (Multilingual)
- Organisation for Economic Co-operation and Development (OECD) (English and French)
- United Nations Economic Commission for Europe (UNECE) (English only)
- United Nations Environment programme (UNEP) (Multilingual)
- United Nations Institute for Training and Research (UNITAR) (English and French)
- World Health Organization (WHO) (Multilingual)
- PRTR section on the Aarhus Convention website(English only)