The OECD work on chemical safety and biosafety deals with the safe use of chemicals, nanomaterials, pesticides, biocides, and products of modern biotechnology. It also addresses related areas of concern and interest, such as chemical accidents and Pollutant Release and Transfer Registers (PRTRs). Its aims are: to protect health and the environment, while avoiding duplication of effort and ensuring that efficiencies are made and barriers to trade avoided.