How to apply - Registering as a gas contractor

Purpose of Registration

The purpose of the registration scheme is to ensure that only competent gas contractors, who employ registered gas installers and appropriate material resources, undertake gas installation work for enhancing the safety of gas users and members of the public.

Who Should Register

Any gas contractor who wants to commence or carry on business as a gas contractor from 1 April 1992 should be registered with the Government.

From that date onwards, no person shall employ a contractor other than a registered gas contractor for gas installation work.

Gas installation work undertaken by a gas contractor is associated with gas service pipes and controls, and all downstream gas fittings including gas appliances, as defined in the Gas Safety (Registration of Gas Installers and Gas Contractors) Regulations, Cap. 51. There are eight classes of work and these are listed in the appendix.

How to Apply

Applications for registration as Registered Gas Contractors / Application for replacement of lost/destroyed Registered Gas Contractor Certificate can be made to the Electrical and Mechanical Services Department (EMSD). The procedures for application are as follows:

  1. Obtain an application form:
    Form 2 - New Application for Registration as a Gas Contractor  [PDF format (736KB)] or Form RGC - Lost/Destroyed  [PDF format (186KB)] from the EMSD Registration and Permit Office, Ground Floor, 3 Kai Shing Street, Kowloon, Hong Kong.
  2. Complete the application form carefully according to the instruction sheets attached to the form.
  3. Submit the completed application form together with an application fee of $5,110 (for each new application) or $150 (for each replacement application) to the EMSD Registration and Permit Office.

Application fees are not refundable. Therefore, an applicant should not submit more than one application form at any one time.

An Inspector on behalf of the Gas Authority will contact the applicant in order to examine he submitted application, with particular reference to business resources deployed and scope of gas installation work previously undertaken.

A Certificate of Registration will be issued to the successful applicant. This certificate will remain valid until the holder surrenders it to EMSD for reasons stated in the Gas Safety (Registration of Gas Installers and Gas Contractors) Regulations, Cap. 51.


Enquiries can be directed to the Gas Standards Office, EMSD, 3 Kai Shing Street, Kowloon, Hong Kong (Tel. 1823 Citizen's Easy Link).

This is not a legal document and is prepared for general information only. Copies of the Gas Safety Ordinance Cap. 51 and the Gas Safety (Registration of Gas Installers and Gas Contractors) Regulations, Cap 51 can be purchased by following method, please click here.