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See all EU institutions and bodiesGlossary
| CLRTAP | United Nations Convention on Long Range Transboundary Air Pollution |
| CO | carbon monoxide |
| CO 2 | carbon dioxide |
| CTP | Common Transport Policy |
| dB(A) | international sound pressure level unit meaning decibel with an A frequency weighting which reflects the sensitivity of the human ear |
| DG | Directorate-General (of the European Commission) |
| DPSIR | Driving forces, Pressures, State, Impact, Responses |
| EAP | environmental action programme (5EAP is the fifth environmental action programme of the European Union) |
| ECMT | European Conference of Ministers of Transport |
| EEA | European Environment Agency |
| EIA | environmental impact assessement |
| EIB | European Investment Bank |
| EIONET | European Information and Observation Network |
| EMAS | Eco-Management and Auditing Scheme |
| ESDP | European Spatial Development Perspective |
| ETC | European Topic Centre |
| EU | European Union |
| Eurostat | Statistical Office of the European Union |
| GDP | gross domestic product |
| HSR | high-speed railway |
| ICAO | International Civil Aviation Organization |
| IEA | International Energy Agency |
| km | kilometers |
| ktonnes | thousand tonnes |
| LCA | life-cycle assessment |
| MARPOL | International Convention for the Prevention of Pollution from Ships |
| MEET | methodologies for estimating emissions from transport |
| MS | Member State (of EU) |
| Mt | million tonnes |
| NGO | non-governmental organisation |
| NMVOC | non-methane volatile organic compound |
| NO 2 | nitrogen dioxide |
| NO x | nitrogen oxides |
| OECD | Organisation for Economic Cooperation and Development |
| PM 10 | respirable Particulate Matter with aerodynamic diameter between 2.5 and 10 µm |
| PPP | purchasing power parities |
| SEA | strategic environmental assessment |
| SO 2 | sulphur dioxide |
| TEN | trans-European transport network |
| TERM | Transport and Environment Reporting Mechanism for the EU |
| TINA | Transport Infrastructure Needs Assessment |
| TRENDS | Transport and Environment Database System |
| UN | United Nations |
| UNCSD | United Nations Commission on Sustainable Development |
| UNECE | United Nations Economic Commission for Europe |
| UNFCCC | United Nations Framework Convention on Climate Change |
| VOC | volatile organic compound |
| WHO | World Health Organization |
| 5EAP | European Unions fifth environmental action programme |