### Gas Safety (Installation and Use) Regulations 《氣體安全(裝置及使用)規例》

28. Suspended gas appliances
No person shall install a suspended gas appliance unless the installation pipe to which it is connected is so constructed and installed as to be capable of safely supporting the weight imposed on it and such appliance is designed to be so supported.

29. Flue dampers
(1) A person who installs an automatic damper to serve a gas appliance shall—
(a) ensure that such damper is so interlocked with the supply of gas to the burner that burner operation is prevented in the event of failure of such damper when not in the open position; and
(b) immediately after installation examine such appliance and such damper to verify that they can be used together safely without constituting a danger to any person or property.
(2) No person shall install a manually operated damper to serve a domestic gas appliance.
(3) No person shall install a domestic gas appliance to a flue which incorporates a manually operated damper unless such damper is permanently fixed in the open position.

30. Testing of gas appliances
(1) Where a person installs a gas appliance at a time when gas is being supplied to any premises in which such appliance is installed, he shall immediately thereafter test its connection to the installation pipe to verify that it is gastight and examine such appliance, and the gas fittings and other works for the supply of gas and any flue or means of ventilation to be used in connection with such appliance, for the purpose of ascertaining whether—
(a) such appliance has been installed in accordance with these regulations;
(b) the operating pressure of such appliance is as recommended by its manufacturer;
(c) such appliance has been installed with due regard to its manufacturer’s instructions, if any, accompanying such appliance; and
(d) all gas safety controls are in proper working order.
(2) Where a person carries out testing and examination specified in subregulation (1) in relation to a gas appliance and adjustments are necessary to ensure compliance with the requirements specified in that subregulation, he shall—
(a) carry out those adjustments; or
(b) disconnect such appliance from the supply of gas.
(3) Where a person installs a gas appliance in any premises at a time when gas is not being supplied to the premises, no person shall supply gas to such appliance unless he has caused such testing and examination and adjustments as are specified in subregulations (1) and (2) to be carried out.

### Gas Safety (Installation and Use) Regulations 《氣體安全(裝置及使用)規例》

31. Unsafe gas appliances
No person shall use a gas appliance if at any time he knows or has reason to suspect—
(a) that there is insufficient supply of air available for such appliance for proper combustion at the point of combustion;
(b) that the removal of the products of combustion from such appliance is not being or cannot safely be carried out;
(c) that the room or internal space in which such appliance is installed is not adequately ventilated for the purpose of providing air containing a sufficiency of oxygen for the persons present in the room, or in, or in the vicinity of, the internal space while such appliance is in use;
(d) that any gas is escaping from such appliance or from any gas fitting used in connection with such appliance; (L.N. 222 of 1999)
(e) that such appliance or any part of it or any gas fitting or other works for the supply of gas used in connection with such fitting is so faulty or maladjusted that it cannot be used without constituting a danger to any person or property; or (L.N. 222 of 1999)
(f) that the appliance has been installed or used in contravention of regulation 35. (L.N. 222 of 1999)

### Gas Safety (Installation and Use) Regulations 《氣體安全(裝置及使用)規例》

32. Unsafe gas fittings
(1) Where—
(a) a gas supply company which supplies gas to any premises; or
(b) a person engaged in carrying out work in relation to a gas fitting in any premises,
knows or has reason to suspect that any defect or other circumstance referred to in regulation 31 exists, or that gas is escaping from any other gas fitting, in the premises, then, where paragraph (a) is applicable, the company shall take all reasonable steps to cause a person to, and, where paragraph (b) is applicable, the person referred to therein shall—
(i) so far as is reasonably practicable, forthwith take all steps to carry out repair work to remove the defect or remedy that circumstance, or to prevent the further escape of gas, as the case may be; or
(ii) if it is not reasonably practicable to carry out the repair work referred to in paragraph (i)—
(A) cause the supply of gas to the gas fitting concerned to be shut off;
(B) attach to such fitting, or to the gas valve which has shut off the supply of gas to it, a notice prepared and issued by the Authority for the purposes of this subparagraph, completed in accordance with any directions specified therein; and
(C) as soon as practicable, submit to his employer or, if he is self-employed, shall retain for not less than 2 years, a notice prepared and issued by the Authority for the purposes of this subparagraph, completed in accordance with any directions specified therein.
(2) The employer to whom a notice is submitted under subregulation (1)(ii)(C) shall retain it for not less than 2 years after the day on which it was so submitted.
(3) Subject to regulation 33, no person shall remove or mark, or damage or destroy, a notice referred to in subregulation (1)(ii)(B) attached to a gas fitting or gas valve.
(4) Where subregulation (1)(a) is applicable and the gas supply company concerned is unable to cause a person to take the action required under subregulation (1)(i) or (ii) notwithstanding the company taking all reasonable steps to do so, then the company shall shut off the supply of gas to the premises concerned unless it is not reasonably practicable to do so without shutting off the supply of gas to any other premises to which this subregulation is not applicable.
(5) Subregulation (4) shall not prejudice the operation of any other right, privilege or obligation that a gas supply company has to shut off the supply of gas to any premises.
(L.N. 222 of 1999)

### Gas Safety (Installation and Use) Regulations 《氣體安全(裝置及使用)規例》

33. Reinstatement of supply of gas
(1) Where a supply of gas to a gas fitting is shut off under regulation 32(1), no person shall reinstate such supply unless—
(a) the defect or other circumstance, or the further escape of gas, specified in the notice concerned referred to in regulation 32(1)(ii)(B), is removed or remedied, or prevented, as the case may be; or
(b) upon the request of the responsible person for the premises in which such fitting is installed, the Authority, being of the opinion that such shut off was not justified, states in writing that he is of that opinion.
(2) Where a supply of gas to premises is shut off under regulation 32(4), no person shall reinstate such supply unless—
(a) the gas supply company concerned states in writing that in relation to the premises it is satisfied that it is no longer necessary to cause a person to take the action required under regulation 32(1)(i) or (ii);
(b) upon the request of the responsible person for the premises, the Authority, being of the opinion that such shut off was not justified, states in writing that he is of that opinion; or
(c) subregulation (1)(a) or (b) becomes applicable to the gas fitting concerned in the premises.
(3) Where a person reinstates a supply of gas to a gas fitting as provided under subregulation (1), he shall—
(a) immediately thereafter remove the notice referred to in regulation 32(1)(ii)(B) which relates to such fitting; and
(b) as soon as practicable, submit to his employer or, if he is self-employed, shall retain for not less than 2 years, the notice removed under paragraph (a) completed in accordance with any directions specified therein.
(4) The employer to whom a notice is submitted under subregulation (3) shall retain it for not less than 2 years after the day on which it was so submitted.
(L.N. 222 of 1999)