| Clinical Waste Collection Licence | Waste Disposal Ordinance | Environmental Protection Department |
| Customer Satisfaction Management System | ISO 10002:2014 | The British Standards Institution |
| Disposal of Construction Waste Billing Account | Waste Disposal Ordinance | Environmental Protection Department |
| Environmental Management System | ISO 14001:2015 | -The British Standards Institution
-Hong Kong Quality Assurance Agency |
| Hong Kong Inspection Body Accreditation Scheme (HKIAS) | Certificate of Accreditation: Type A Inspection Body - Indoor Air Quality | Hong Kong Accreditation Service |
| Hong Kong Laboratory Accreditation Scheme (HOKLAS) | Certificate of Accreditation: HOKLAS Accredited Laboratory - Environmental Testing | Hong Kong Accreditation Service |
| Implement of Project Fire Safety System Registration | Implement of Project Fire Safety System Registration | Land, Public Works and Transport Bureau (DSSOPT), Macao |
| Implement of Project Registration | Implement of Project Registration | Land, Public Works and Transport Bureau (DSSOPT), Macao |
| Integrated Management System | ISO 45001:2018 | Hong Kong Quality Assurance Agency |
| Licence of Discharge Industrial Trade Effluent | Water Pollution Control Ordinance | Environmental Protection Department |
| List of Approved Suppliers of Materials and Specialist Contractors for Public Works |
Detail of Certification Air-conditioning Installation (Group I)
Electrical Installation (Group II on Probation)
Fire Service Installation (Group II)
Fountain Installation |
Works Branch, Development Bureau |
| List of Registered Subcontractor | Subcontractor Registration Scheme 03.04 Electrical
03.04.02 General Electrical Installation
03.04.03 Electrical Control and Power Panel Assembly
03.06 Fire Services Installation
03.07 Fountain Installation
03.08 Heating, Ventilation, and Air-conditioning
03.21 Other E&M Trades
03.21.99 Other(Radioactive Substances)
04.08 Miscellaneous Cleaning Services
04.08.01 Cleaning of completed building units prior to handing over to individual owners
03.14 Mechanical Plant and Equipment | Construction Industry Council |
| Permission for Domestic Septic Waste Disposal | Permission for Domestic Septic Waste Disposal | Drainage Services Department |
| Pesticides Licence | Pesticides Ordinance | Agriculture, Fisheries and Conservation Department |
| Quality Management System | ISO 9001:2015 | -Hong Kong Quality Assurance Agency
-The British Standards Institution |
| Radioactive Substances License | Radiation (Control of Radioactive Substances) Regulations | Radiation Board |
| Register of Minor Works Contractors |
Detail of Certification Type A: Class I, II & III;
Type D: Class II & III;
Type E: Class I, II & III |
Buildings Department |
| Register of Specialist Contractors | Registered Specialist Contractors (Sub-register of Ventilation Works Category) | Buildings Department |
| Registered Contractor | Registered Fire Service Installation Contractor (Class 1, 2 & 3) | Fire Services Department |
| Registration of Electrical Contractor | Electrical and Mechanical Services Department |
| Cleaning Services Contractor (Band IIA) | Hong Kong Housing Authority |
| Registration of Food Waste Collector | Waste Disposal Ordinance | Environmental Protection Department |
| Registration of Waste Producer | Waste Disposal Ordinance (Chemical Waste) (General) | Environmental Protection Department |
| Works Contractors | Fire Services and Water Pump Contractors | Hong Kong Housing Authority |