director for Greater China. Recent projects included the study on air quality in the Pearl River Delta, Toxic Substances and pollution in HK waters. The 2008 Beijing's Olympic Bidding and Organizing Committees Liao was the senior environmental adviser to Beijing's Olympic Bidding and Organizing Committees from 1999–2008. She was a member of the bidding committee to represent Beijing at the 2008 Olympic Bidding conference in Moscow on 13 July 2001. The Government of the Hong Kong Special Administrative Region Liao was named Secretary for the Environment, Transport and Works in August 2002 as part of Tung Chee Hwa's Principal Officials Accountability System. The portfolio covered environmental protection, transport services and safety management, road and rail infrastructure, water supply, slope safety and flood prevention, electrical and mechanical and architectural services, and a public works program averaging HK$27b per year. Upon her government appointment, there were concerns about her close relations with Beijing and her close links to the tobacco industry. Liao tackled air pollution head-on by the imposition of emission caps on power stations, and worked with Guangdong to successfully institutionalise emission trading and setting up the first regional air monitoring network. Liao also implemented the polluters- pay- principle in both solid waste and wastewater, produced a 10-year framework for waste management, encouraged private-public partnerships for private lands to conserve nature while greening of the urban areas was systematically carried out under a territory-wide master plan. On the transport side, Liao commissioned three new railways, initiated and completed the merger of the two railway companies in HK, and facilitated cross-boundary traffic by building the Lok Ma Chau railway and the Shenzhen Western Crossing where the first co-location of immigration facilities is implemented. She commissioned and implemented the public transportation fare adjustment scheme to help lift the objectivity and transparency of bus fare adjustments. The scheme, although heavily debated, allowed the public to have visibility to major transportation companies' fare policies in relations to micro and macro economic trends and indicators. She has consistently achieved high approval rates in public opinion polls. Post-retirement Liao is a member of the China Council for International Cooperation on Environment and Development (CCICED), an Environmental Adviser to the Shanghai Municipal Government on the Shanghai World Expo 2010, a Senior Adviser to the Vice-Chancellor of The University of Hong Kong on Environmental and Sustainability Matters, a trustee on the Board of Trustees of the Environmental Defense Fund