| CO - Carbon Monoxide |
| CO2 - Carbon Dioxide |
| dB(A) - Decibel (A), measuring the unit of noise, additional conditions need to be applied like Max or average value, LDEN (day, evening, night, etc) |
| DfE - Design for Environment |
| Eco-efficiency |
| Environmental assessment of tenders |
| EPI - Environmental Performance Indicator |
| Forbidden Materials |
| HC – Hydro carbons (exhaust emission from e.g diesel engines) |
| ICNIRP – International Commission on Non-Ionizing Radiation Protection |
| IPP – Integrated Product Policy |
| ISO 14000 |
| ITT – Invitation to Tender |
| K-Value – The scientific value for the insulations ability of a material |
| LCA– Life Cycle Assessment, environmental assessment of a product or a system |
| LCC – Life Cycle Cost |
| Material list |
| Nordic Environmental Manual |
| NOx – Nitrogen oxides |
| PROSPER project – UIC Project acronym for Procedures for ROlling Stock Procurement within the Environment Requirements |
| PM – Particulate Matter (particle emissions from e.g diesel engine) |
| REPID project – EU funded project acronym for Rail sector framework and tools for standardizing and improving usability of Environment |
| Performance Indicators and Data formats |
| RAVEL project |
| Restricted Materials |
| SO2 – Sulphur dioxide (exhaust emission from e.g diesel engine) |
| TSI – Technical Specification on Interoperability |
| XML – IT software language |
