中華人民共和國香港特別行政區政府  The Government of the Hong Kong Special Administrative Region of the People's Republic of China (開啟新視窗。opens in new window )
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環境保護署 Environmental Protection Department
遵守2A級無障礙圖示,萬維網聯盟(W3C)- 無障礙網頁倡議(WAI) Web Content Accessibility Guidelines 2.0 (開啟新視窗。opens in new window ) 香港品牌形象 Brand Hong Kong (開啟新視窗。opens in new window )