1. Code of Practice for Energy Efficiency of Lighting Installations. Hong Kong SAR Government: Electrical and Mechanical Services Department; 2007.
2. Code of Practice for Energy Efficiency of Air Conditioning Installations. Hong Kong SAR Government: Electrical and Mechanical Services Department; 2007.
3. Code of Practice for Energy Efficiency of Electrical Installations. Hong Kong SAR Government: Electrical and Mechanical Services Department; 2007.
4. Code of Practice for Energy Efficiency of Lift & Escalator Installations. Hong Kong SAR Government: Electrical and Mechanical Services Department; 2007.
5. Code of Practice for Overall Thermal Transfer Value in Buildings. Hong Kong Government: Buildings Department; 1995.