| Energy Efficiency | Railways |
| Electricity Legislation | Departmental Administration |
| Gas Standards | |
| General Legislation |
| Boundary Crossing Facilities and Transport | Security and Vehicle |
| General Engineering | Corporate Services |
| Health Sector | Digitalisation and Technology |
| Municipal Sector | Finance |
The Electrical and Mechanical Services Department (EMSD) is a department of the Government of the Hong Kong Special Administrative Region of the People’s Republic of China, dedicated to providing essential electrical and mechanical (E&M) services. The EMSD consists of two primary functional units: Regulatory Services (RS) and Trading Services (TS). The latter also refers to the Electrical and Mechanical Services Trading Fund (EMSTF). Our mission is to enhance safety and improve the quality of life in society by delivering professional, comprehensive and cost-effective E&M engineering services to government departments and public organisations, while enforcing relevant laws and regulations to ensure E&M safe operations and promote public education.
The RS team is responsible for safeguarding E&M safety and promoting energy efficiency throughout Hong Kong. This team is composed of specialised divisions that oversee the safety of E&M systems, gas and railways through regulatory functions and public outreach initiatives. Additionally, the team monitors the technical performance and development plans of power companies in accordance with the Scheme of Control Agreements. Meanwhile, the RS unit also provides professional advice and technical expertise to the Government on various safety and environmental initiatives. Besides, we lead initiatives like the energy efficiency labelling scheme for appliances and equipment.
The TS team, known as the EMSTF, provides a wide range of professional, comprehensive and high-quality E&M engineering services to approximately 80 government departments and public organisations. Our services extend across various facilities, including hospitals, schools, disciplined services facilities, transport infrastructures, highways, ports and harbours, airport, government offices, court buildings and public recreational and leisure facilities. We offer comprehensive support for E&M systems, building services and electronic systems, including operation, maintenance, project management and consultancy for E&M facilities.