Biocidal products are all substances or mixtures consisting of, containing or generating one or more active substances with the intention of destroying, deterring, rendering harmless, preventing the action of, or otherwise exerting a controlling effect on harmful or undesired organisms.

In the Netherlands (like all EU member states) biocidal products can be used or traded only if they have been authorised. To this end, the Ctgb evaluates biocidal products regarding their effects and risks on humans, animals and the environment.To obtain an authorisation you must compile and submit an application dossier.