Electrical and Mechanical Services Department

The Electrical and Mechanical Services Department (EMSD; ) is a Hong Kong government department responsible for inspection and enforcement of operation and safety of many electricity and gas installations; railways and trams; lifts and escalators; amusement rides; working platforms on building sites, and many other diverse areas. The department has two main branches: Regulatory Services and Trading Services. The department falls under the purview of the Development Bureau. The incumbent Director of Electrical and Mechanical Services is Pang Yiu-hung. The two deputy directors are H. C. Lai and T. H. Tai.

Regulatory Services

 * Railways Branch: In February 2008, the department absorbed and expanded the small Hong Kong Railway Inspectorate (HKRI) from the Transport and Housing Bureau (THB), renaming it the Railways Branch. The Railways Branch has regulatory responsibility for the railway lines operated by the MTR Corporation and the automated people mover operated by the Airport Authority in the terminal building of the Hong Kong International Airport, as well as (since the move from THB) Hong Kong Tramways and the Peak Tram. The former HKRI had been responsible for the railway lines operated by the then Kowloon–Canton Railway Corporation. Its main functions are investigation of railway incidents, oversight of railway safety, assessment and approval of new railways and major modifications, and assessment and follow-up of improvement measures by railway operators. The unit consists of 14 professional and support staff.
 * Electricity and Energy Efficiency Branch
 * Gas & General Legislation Branch

Trading Services
There are three branches under the Trading Services and each branch is led by an assistant director.
 * Engineering Services Branch 1
 * Engineering Branch 2
 * General Engineering Services Division
 * Municipal Sector Division
 * Health Sector Division
 * Corporate Support and Business Development Branch

Innovation and Development
In 2018, EMSD up an Interactive Learning Center in 4/F, EMSD HQ. The learning center has introduced the latest VR (Virtual reality) Learning systems for Electrical and Mechanical industry including the first LED Immersive CAVE in Hong Kong by combining the technologies of immersive VR and BIM (Building information modeling) and the VR training system for Kai Tak Cruise Terminal Passenger Boarding Bridges.