Gas (Supply) Regulations

Gas Act

(Chapter 116A, Section 96)

Gas (Supply) Regulations

Rg 1

G.N. No. S 62/2008

REVISED EDITION 2009

(1st June 2009)

[14th February 2008]

PART I

PRELIMINARY

Citation

1.  These Regulations may be cited as the Gas (Supply) Regulations.

Definitions

2.—(1)  In these Regulations, unless the context otherwise requires —

“Building and Construction Authority” means the Building and Construction Authority established under the Building and Construction Authority Act 1999;

[S 569/2025 wef 31/12/2021]

“consumer’s internal pipe” means the part of the gas installation between a meter installation and a gas appliance;

“designated representative” means a professional engineer or a licensed gas service worker appointed by the developer or a responsible person for the premises;

“flue” means a passage for conveying the products of combustion from a gas appliance to the external air and includes any part of the passage in a gas appliance ventilation duct which serves the purpose of a flue;

“gas meter control valve” means a valve at the inlet of any meter used for the purpose of turning on or off a supply of gas through such meter to any gas installation;

“gas service worker licence” means a licence granted by the Authority under regulation 24;

“gas supply code” means the code of practice on gas supply issued by the Authority, as in force from time to time;

[S 569/2025 wef 01/09/2025]

“leak free”, in relation to any gas installation or gas fitting, means there is no leak at any part of such gas installation or gas fitting and verified by such appropriate testing as may be specified in the Singapore Standard SS 608 or the gas supply code;

[S 288/2016 wef 01/07/2016]

[S 569/2025 wef 01/09/2025]

“meter installation” means any meter and its associated equipment and installation, including any associated pipework, filter, valve, pressure regulating equipment, seal, housing, mounting, telemetry equipment and gas chromatograph;

“professional engineer” means any person who is registered as a professional engineer in the mechanical engineering discipline under the Professional Engineers Act 1991;

[S 569/2025 wef 31/12/2021]

“purging” means a series of measures that is taken to purge air or gas in any pipe of a gas installation for the purpose of preventing the formation of an explosive mixture of gas and air in such pipe;

“Register” means the register of licensed gas service workers maintained under regulation 26;

“responsible person”, in relation to any premises, means the consumer or occupier of the premises or, where there is no consumer or occupier or the occupier is away, the owner of the premises, the management corporation constituted under the Land Titles (Strata) Act 1967 or any other person with the authority for the time being to take appropriate action in relation to any gas installation therein;

[S 569/2025 wef 31/12/2021]

[Deleted by S 288/2016 wef 01/07/2016]

“Singapore Standard SS 608” means the Singapore Standard SS 608 Code of Practice for Gas Installation, as in force from time to time;

[S 569/2025 wef 01/09/2025]

“valve” means a device for the purpose of controlling or shutting off gas flow and includes a gas service isolation valve.

(2)  For the purposes of these Regulations, any reference to installing a gas fitting includes a reference to converting any pipe, fitting, meter, apparatus or appliance to use gas supplied through a gas pipeline.

PART II

SUPPLY OF GAS

Application for supply

3.—(1)  Except where the consumer is a direct access customer, an application for a supply of gas or for an increase to an existing supply thereof shall be made to a gas retailer.

(2)  Where the applicant is a direct access customer, an application for a supply of gas or for an increase to an existing supply thereof shall be made to a gas transporter and Part III shall apply, with the necessary modifications, to such application.

(3)  Every application referred to in paragraph (1) shall be —

(a) made in such form as may be required by the relevant gas retailer; and

(b) accompanied by such plans and specifications of any gas installation as required and approved by the relevant gas retailer in accordance with such procedures as may be specified in the gas supply code.

(4)  Where an application is made under paragraph (1), the relevant gas retailer shall —

(a) where the applicant is not the owner of the gas installation through which gas is to be supplied, satisfy himself, before making available such supply or increase applied for, that the applicant has obtained the consent of the responsible person for such gas installation to be used for the supply or the increase applied for;

(b) prior to turning on the gas supply at the relevant gas meter control valve, ensure that the appropriate test as specified in the gas supply code is conducted on the gas appliance and the consumer’s internal pipe including the meter installation to ascertain that it is safe to turn on the gas supply;

(c) upon the completion of the tests referred to in sub-paragraph (b), if the gas supply is not turned on and the consumer’s internal pipe including the meter installation is left unattended, ensure that —

(i) the gas meter is removed or a spool is placed at the gas pipe which is connected to the relevant meter installation to prevent any flow of gas into the gas installation; and

(ii) the tests referred to in sub-paragraph (b) are conducted again before turning on the gas supply; and

(d) after turning on the gas supply, immediately issue a statement of turn-on, which shall be in such form as may be approved by the Authority, signed by the officer or agent of the relevant gas retailer, and counter-signed by the applicant or a person authorised by the applicant.

(5)  Unless otherwise provided in these Regulations, no person other than an officer or agent of the relevant gas retailer shall turn on the relevant gas meter control valve.

(6)  Where the applicant is a direct access customer, the applicant shall —

(a) where he is not the owner of the gas fitting through which the supply of gas is to be conveyed, obtain the consent of the owner for such gas fitting to be used for the supply or the increase applied for; and

(b) ensure that appropriate tests are conducted by a professional engineer on the gas appliance and the gas fitting including the meter installation to ascertain that it is safe to turn on the gas supply, prior to turning on the gas supply at the relevant gas meter control valve.

(7)  Any person who contravenes paragraph (5) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Power to discontinue supply or refusal to supply

4.—(1)  The relevant gas retailer shall refuse to supply gas to any premises if the gas installation or gas appliance to which such supply is made is unsafe for use or does not comply with the provisions of the Act.

(2)  When the relevant gas retailer becomes aware that any gas installation or gas appliance to which a supply of gas is made is unsafe, it shall immediately discontinue such supply of gas.

(3)  Where the supply of gas is discontinued under paragraph (2), no person other than the relevant gas retailer shall restore the supply of gas.

(4)  The relevant gas retailer shall inform the gas transporter and the applicant or the responsible person for the premises of any discontinuance or restoration of any supply of gas made by it.

PART III

CONNECTION OF GAS INSTALLATION AND GAS FITTING

Application for connection

5.—(1)  An application for the connection of any gas installation or gas fitting for the supply of gas shall be made to a gas transporter.

(2)  Every application referred to in paragraph (1) shall be —

(a) made in such form as may be required by the gas transporter; and

(b) accompanied by such plans and specifications of the gas installation or gas fitting as required and approved by the gas transporter in accordance with such procedures as may be specified in the gas supply code.

(3)  Where an application is made under paragraph (1), the gas transporter shall —

(a) prior to making the connection applied for under that paragraph, ensure that the appropriate test as specified in the gas supply code is conducted by a designated representative on the gas installation or gas fitting from the gas service isolation valve to (but excluding) the meter installation to ascertain that it is safe to make such connection;

(b) upon completion of the tests referred to in sub-paragraph (a), and if gas is not admitted into the gas installation or gas fitting up to (but excluding) the meter installation and the said portion of the gas installation or gas fitting is left unattended —

(i) disconnect any connection made to the gas installation or gas fitting; and

(ii) ensure that the appropriate tests are conducted again by a designated representative in accordance with sub-paragraph (a), before making the connection to the gas installation or gas fitting and admitting the gas; and

(c) after admitting gas into the gas installation or gas fitting up to (but excluding) the meter installation, immediately issue a statement of admittance of gas (which shall be in such form as may be approved by the Authority) signed by the officer of the gas transporter responsible for the admittance of gas, and counter-signed by the applicant and his designated representative.

(4)  Unless otherwise provided in these Regulations, no person other than an officer or agent of the gas transporter shall turn on the gas service isolation valve.

(5)  Any person who contravenes paragraph (4) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Gas service isolation valve

6.—(1)  The gas transporter shall determine —

(a) the point of termination of a gas service pipe; and

(b) the location of a gas service isolation valve for any premises to which gas is supplied or to be supplied.

(2)  In determining the point of termination of a gas service pipe and the location of a gas service isolation valve under paragraph (1), the gas transporter shall have regard to the ease of isolation of any supply of gas to any premises in the event of any emergency involving public safety.

Refusal to connect or power to disconnect

7.—(1)  The gas transporter shall refuse to connect any gas installation or gas fitting to the gas pipeline network if the gas installation or gas fitting is unsafe for use or does not comply with the provisions of the Act.

(2)  Where a gas installation or gas fitting is connected to the gas pipeline network, or any replacement of or any addition or alteration to a gas installation or gas fitting already connected thereto is made, in contravention of any of the provisions of the Act, the gas transporter shall have the right to disconnect such gas installation or gas fitting from the gas pipeline network.

(3)  When the gas transporter becomes aware that a gas installation or gas fitting is unsafe or it is no longer to be used to supply gas to any consumer, it shall —

(a) disconnect the gas installation or gas fitting from the gas pipeline network at an appropriate part of the gas pipeline network immediately; and

(b) ensure that the gas pipeline network continues to operate in a manner that will not endanger the safety of any person.

(4)  Where the gas transporter —

(a) refuses to connect any gas installation or gas fitting to the gas pipeline network under paragraph (1); or

(b) disconnects any gas installation or gas fitting from the gas pipeline network under paragraph (2) or (3),

it shall immediately give notice in writing for its decision to the applicant or the responsible person for the premises.

Re-connection of gas installations or gas fittings

8.—(1)  A person whose gas installation or gas fitting has been disconnected under regulation 7(2) or (3) may make an application to the gas transporter under regulation 5 for the gas installation or gas fitting to be re-connected.

(2)  No application for the re-connection of the gas installation or gas fitting under paragraph (1) shall be made to the gas transporter unless the applicant has —

(a) rectified any defect affecting the safe operation of the gas installation or gas fitting; and

(b) complied with the provisions of the Act.

(3)  Before re-connecting any gas installation or gas fitting, a gas transporter shall ascertain that —

(a) any defect affecting the safe operation of the gas installation or gas fitting has been rectified; and

(b) the provisions of the Act has been complied with.

PART IV

GAS INSTALLATION, GAS FITTING AND GAS APPLIANCE

Compliance with standards

9.  A gas service worker must ensure that any gas service work which he undertakes to carry out, is carried out in compliance with the Singapore Standard SS 608.

[S 569/2025 wef 01/09/2025]

Inspection of gas installation, etc.

10.—(1)  In connection with a programme established and implemented under section 29(4) of the Act, inspection of any part of a gas installation in any premises must be carried out at such intervals in accordance with the gas supply code, to ensure that the part —

(a) is maintained at all times in a safe and proper operating condition;

(b) functions at all times in a reliable manner; and

(c) is reasonably protected against damage.

(2)  Where the person who must inspect any part of a gas installation pursuant to section 29(4) of the Act is not the gas transporter, the person must engage a professional engineer or licensed gas service worker to carry out the inspection.

(3)  On completion of any inspection of any part of the gas installation, the professional engineer or licensed gas service worker engaged under paragraph (2) must, if satisfied that the requirements in paragraph (1)(a), (b) and (c) have been met in relation to the part of the gas installation inspected —

(a) issue a certificate of fitness certifying the fitness of the part of the gas installation; and

(b) submit the certificate of fitness to the gas transporter within 30 days after the inspection.

(4)  Any person who fails to submit the certificate of fitness as required under paragraph (3) or who submits such certificate of fitness knowing that it is false or misleading shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

(5)  For the purposes of this regulation, a reference to a gas installation excludes any part of the gas installation that is a meter installation.

[S 569/2025 wef 01/09/2025]

11.  [Deleted by S 569/2025 wef 01/09/2025]

Responsibilities of consumers to maintain gas appliances, etc.

12.  The consumer shall at his own expense be responsible for the proper maintenance, repair and replacement of the gas appliances on the consumer’s premises.

[S 569/2025 wef 01/09/2025]

Responsibilities of direct access customers to maintain gas fittings, etc.

13.  The direct access customer shall at his own expense be responsible for the inspection of the gas fitting and the proper maintenance, repair or renewal of the gas plants and gas appliances on the premises of the direct access customer, and of such gas fittings as may be agreed upon between the gas transporter and the direct access customer.

[S 569/2025 wef 01/09/2025]

Replacement of, or addition or alteration to gas installation, etc.

14.—(1)  No person shall carry out any replacement of, or addition or alteration to, the gas installation or gas fitting located from the gas service isolation valve to (and including) the meter installation unless —

(a) he has made an application to the gas transporter for the approval of such replacement, addition or alteration; and

(b) the gas transporter has approved the application.

(2)  Where the consumer is a direct access customer, no person shall carry out any installation or replacement of, or addition or alteration to, the gas fitting unless —

(a) he is a professional engineer; or

(b) he is under the supervision of a professional engineer when carrying out the work.

(3)  Where the consumer is not a direct access customer, no person shall carry out any addition or alteration to the consumer’s internal pipe unless —

(a) he has made an application to the relevant gas retailer for the approval of such addition or alteration; and

[S 23/2015 wef 01/02/2015]

(b) the relevant gas retailer has approved the application.

[S 23/2015 wef 01/02/2015]

(4)  Any person who contravenes paragraph (1), (2) or (3) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Protection of gas installation, etc., against damage

15.—(1)  Any person who installs a gas installation or gas fitting shall ensure that every part of it is properly supported and protected from damage.

(2)  Subject to paragraph (3), no person shall install a gas installation or gas fitting in a position where it is likely to be exposed to any substance which may corrode the gas installation or gas fitting.

(3)  Paragraph (2) shall not apply to a gas installation or gas fitting that is —

(a) constructed of materials resistant to being so corroded; or

(b) suitably protected against such corrosion.

(4)  Any person who contravenes paragraph (1) or (2) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Work on premises not to affect existing gas installation, etc.

16.—(1)  No person shall carry out or cause to be carried out any work on any premises which may affect any gas installation or gas fitting on those premises in such a manner that the subsequent use of such gas installation or gas fitting might endanger any person or property.

(2)  Before any person carries out or causes to be carried out any work on any premises which may affect any gas installation or gas fitting on those premises, he shall —

(a) take due care to ascertain the existence of any gas supply to the premises and the location of the gas installation or gas fitting within those premises; and

(b) take the necessary precautions to ensure that the work will not cause any damage to the gas installation or gas fitting within those premises.

(3)  Any person carrying out or causing to be carried out any work on any premises which may affect the gas installation or gas fitting on those premises shall —

(a) check at the end of each day’s work that the relevant gas meter does not register any passage of gas when all gas appliances within the premises have been turned off; and

(b) take such other steps as may be necessary throughout the duration of the work to ensure that there is no escape of gas from the gas installation or gas fitting within the premises.

(4)  Any person carrying out or causing to be carried out any work on any premises who knows or has reason to suspect that gas is escaping in those premises shall immediately —

(a) take all reasonable steps to cause the supply of gas to be shut off at such place as may be necessary to prevent further escape of the gas; and

(b) inform the gas transporter of the escape or suspected escape of gas in those premises.

(5)  Any person who contravenes paragraph (1), (2), (3) or (4) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000 or to imprisonment for a term not exceeding 6 months or to both.

Safe use of gas installation, etc.

17.—(1)  No person shall use any gas installation or gas fitting unless it is installed in a position where it can be used safely.

(2)  No person shall use —

(a) a pipe conveying or supplying gas;

(b) a gas installation; or

(c) a gas fitting,

for earth connection or as a protective conductor for any circuit in an electrical or a supply installation.

(3)  Any person who contravenes paragraph (1) or (2) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Work on pipe containing gas

18.—(1)  No person shall carry out any work on any pipe that is used or intended to be used as part of a gas installation or gas fitting unless he has taken all reasonable steps to ensure that the work will not cause danger to any person or property.

(2)  Any person who contravenes paragraph (1) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000 or to imprisonment for a term not exceeding 6 months or to both.

Re-admitting gas on completion of work

19.—(1)  Any person who carries out any work in relation to a gas installation or gas fitting which may affect the integrity of any part of that gas installation or gas fitting thereof shall, upon the completion of such work, ensure that the affected part of the gas installation or gas fitting has been installed in compliance with these Regulations and is appropriately tested to verify that it is gas-tight.

(2)  Any person who has completed any work referred to in paragraph (1) shall ensure that —

(a) immediately after complying with that paragraph, purging is safely carried out on the gas installation or gas fitting to prevent the formation of any potentially explosive mixture of air and gas in the gas installation or gas fitting;

(b) if such purging has been carried out through a loosened connection, appropriate tests are conducted on the connection to confirm that it is leak free after it has been re-tightened;

(c) every seal fitted after such purging is appropriately tested to confirm that it is leak free; and

(d) if a supply of gas has been discontinued to any other part of the gas installation or gas fitting which may be affected by the work referred to in that paragraph, appropriate tests are conducted on that part of the gas installation or gas fitting to confirm that it is leak free when re-admitting gas.

(3)  If gas is not re-admitted to the gas installation or gas fitting referred to in paragraph (1) on completion of the procedures referred to in paragraphs (1) and (2), any person who re-admits gas to such gas installation or gas fitting shall ensure that the procedures are conducted again accordingly.

(4)  Any person who contravenes paragraph (1), (2) or (3) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Installation of gas appliance

20.—(1)  Any person who installs any gas appliance shall ensure that the appliance can be used without constituting a danger to any person or property, and for this purpose, he shall ensure that —

(a) the gas appliance is installed in accordance with the specifications of the manufacturer;

(b) there is available a sufficient and permanent supply of air for the gas appliance (as specified by the manufacturer) for proper combustion;

(c) there is in place a flue, pipework or proper means of removal of products of combustion from the gas appliance;

(d) the room or the internal space in which the gas appliance is to be used has adequate ventilation (as specified by the manufacturer);

(e) there is a means of shutting off the supply of gas to such gas appliance; and

(f) the gas appliance is easily accessible for operation, inspection and maintenance.

(2)  In the case of any gas appliance used by a direct access customer, no person shall carry out any installation, repair, alteration or replacement of any gas appliance unless —

(a) he is a professional engineer; or

(b) he carries out the work under the supervision of a professional engineer.

(3)  Any person who contravenes paragraph (1) or (2) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Testing of gas appliances

21.—(1)  Any person who carries out any installation, maintenance or repair of a gas appliance at a time when gas is being supplied to the premises in which the gas appliance is installed shall, immediately after completion of such installation, maintenance or repair, test the gas appliance and its connection to the gas installation to check that —

(a) the gas appliance is safe to be used;

(b) the connection of the gas appliance to the gas installation is gas-tight; and

(c) the work is in compliance with these Regulations.

(2)  If, on completion of the tests referred to in paragraph (1), it is found that the gas appliance is safe to be used, the person performing the tests shall issue a written statement certifying the gas appliance is safe for use.

(3)  No person shall use any gas appliance that has not been certified safe for use.

(4)  Any person who contravenes paragraph (1), (2) or (3) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.

Marking of pipe for identification

22.—(1)  Any person who installs any pipe being a part of a gas installation in a part of any premises not used for dwelling purposes shall permanently mark the pipe in the manner specified in the Singapore Standard SS 608 so that the pipe is readily identifiable upon inspection as a pipe for conveying or supplying gas.

[S 288/2016 wef 01/07/2016]

[S 569/2025 wef 01/09/2025]

(2)  The responsible person for the premises in which any such pipe is situated shall ensure that the pipe continues to be so identifiable in the manner referred to in paragraph (1) so long as it is installed for use for conveying or supplying gas.

(3)  Any person who contravenes paragraph (1) or (2) shall be guilty of an offence and shall be liable on conviction to a fine not exceeding $5,000.