 BS 7750 supplied the template for the development of the ISO 14000 series in 1996, which has representation from ISO committees all over the world., more than 300,000 certifications to ISO 14001 can be found in 171 countries.Prior to the development of the ISO 14000 series, organizations voluntarily constructed their own EMSs, but this made comparisons of environmental effects between companies difficult; therefore, the universal ISO 14000 series was developed.