The Apsara Authority, the body that manages the country's flagship tourist attraction Angkor Wat, has had approval of its environmental management extended by ISO, a quality assurance accrediting body. Tan Sam Bon, the deputy director of Apsara Authority, said auditors from Japan Quality Assurance (JQA) visited the organisation last month and approved the extension of the ISO certificate. He said the extension would encourage Apsara Authority to increase its efforts to conserve and maintain the World Heritage site. The certificate lasts three years and will expire in 2012. The body received the first certificate in 2006 and JQA's auditors perform their inspections annually.