One of the requirements of the 'contained use' legislation is the use of validated methods for inactivation of these GMOs and pathogens, the decontamination of work tables, etc. This is where the biocidal products regulation (BPR) comes in. However, for certain applications (e.g. inactivation of parasites, disinfection of water baths to heat up laboratory reagents), there are currently no authorised biocidal products available on the market.