Along with development of environmental management systems at the global and regional levels, we have been introducing such systems at each business site in order to continuously improve their environmental performance and to control environmental pollutants.
We have been working actively to acquire ISO 14001, an international certification for environmental management, particularly at our production facilities. Presently, more than 90% of all Honda vehicle assembly and product assembly plants worldwide are certified.
After acquiring certification at each of our five major production facilities in Japan, we combined their certification for integrated operation of their management systems. Going forward, we plan to promote acquisition and expand our integrated system to include environmental management of the Saitama Factory's Yorii Automobile Plant, newly completed in March 2013. We also combined in fiscal 2012 the certification registration for nine office buildings in Japan, including the Honda head office buildings in Aoyama and Wako.
In order to ensure that society and stakeholders recognize a high level of transparency and reliability in the environmental impact data released by Honda, we have been obtaining third-party verification of our data from Bureau Veritas Japan Co., Ltd.(see page G04). Since fiscal 2012, we also have been conducting a series of on-site sampling surveys at business sites in Japan and overseas, with consideration given to necessity and balance from a public perspective.