| Subject | English | Dutch |
| earth.sc. | Environmental instruments | Instrumenten op milieugebied |
| environ. | environmental policy instrument Technological, economical and legislative measures employed to prevent or control pollution or damage of the environment | milieubeleidsinstrument |
| environ. | environmental policy instrument | milieubeleidsinstrument |
| gen. | International Environmental Policy,Instruments and Water Management Division | Afdeling Internationaal Milieubeleid,Instrumenten en Waterbeheer |