### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

23. Purging, etc. of gas pipes
(1) No person shall commission, recommission or decommission any gas pipe except by a purging procedure which ensures, so far as is reasonably practicable, that—
(a) the persons carrying out such purging, any persons working in the vicinity of the place where such purging is being carried out and members of the public are protected against any dangers which may arise from such purging;
(b) the risk of an explosive mixture of gas and air arising in such pipe is minimized; and
(c) in the case of the commissioning or recommissioning of such pipe, no air or inert gas remains in such pipe after such purging which may cause an unsafe situation to arise in respect of the continuity of the gas supplied downstream of such pipe.
(2) Where a gas pipe through which gas is supplied has the pressure of such gas reduced to zero, no person shall—
(a) carry out any work on such pipe; or
(b) recommission such pipe,
unless such pipe has been purged of such gas.
(3) For the purposes of this regulation, gas pipe (氣體喉管) includes any gas fitting—
(a) used in connection with a gas pipe; and
(b) through which gas may flow.

23A. Works in the vicinity of gas pipes
(1) No person shall carry out, or permit to be carried out, any works in the vicinity of a gas pipe unless he or the person carrying out the works has, before commencing the works, taken all reasonable steps to ascertain the location and position of the gas pipe.
(2) A person who carries out, or permits to be carried out, any works in the vicinity of a gas pipe shall ensure that all reasonable measures are taken to protect the gas pipe from damage arising out of the works that would be likely to prejudice safety.
(L.N. 455 of 1996)

25. Only certain motor vehicles may carry liquefied petroleum gas
(1) No person shall use a motor vehicle to carry liquefied petroleum gas in bulk on a road unless—
(a) the vehicle is a road tanker; and
(b) there is a valid permit issued in respect of the tanker.
(2) No person shall use a motor vehicle to carry on a road—
(a) any cylinder which has a water capacity of not less than 130 litres; or 
(b) any combination of cylinders which have a combined water capacity of not less than 130 litres,
unless—
(i) the vehicle is a cylinder wagon; and
(ii) there is a valid permit issued in respect of the wagon.

### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

26. Application for and issue of permit
(1) Subject to this regulation, the Authority may, upon payment of the prescribed fee, issue a permit—
(a) to the owner of a road tanker which complies with the conditions specified in Part 1 of Schedule 2 authorizing the use of the tanker to carry liquefied petroleum gas in bulk on roads; or
(b) to the owner of a cylinder wagon which complies with the conditions specified in Part 2 of Schedule 2 authorizing the use of the vehicle to carry cylinders on roads.
(2) An application for a permit shall be—
(a) made by—
(i) the owner of the gas vehicle in respect of which the permit is sought; or
(ii) a person authorized in writing by the owner in that behalf; and
(b) in the approved form, and accompanied by—
(i) such documents relating to that vehicle as are—
(A) specified in that form; and
(B) required for the purpose of the Authority determining whether that vehicle complies with the relevant conditions specified in Schedule 2; and
(ii) proof, satisfactory to the Authority, of the ownership of that vehicle.
(3) The Authority shall refuse to issue a permit in respect of a gas vehicle if—
(a) subregulation (2) is not complied with in respect of the application for the permit;
(b) the owner of the vehicle does not produce it for examination by an inspector in such place and at such time as the Authority specifies; or
(c) the vehicle is found on examination not to comply with the relevant conditions specified in Schedule 2.
(4) Where the Authority refuses to issue a permit in respect of a gas vehicle, he shall by notice served on the owner of the vehicle inform him of that refusal and of the reasons therefor.

27. Form and particulars of permit
A permit shall—
(a) be in the approved form; and
(b) contain the particulars specified in Schedule 3.

28. Permit subject to conditions
(1) A permit issued in respect of a gas vehicle may be issued subject to such reasonable conditions as the Authority thinks fit and as are specified in the permit.
(2) The Authority may at any time add to, vary or revoke any conditions specified by him under subregulation (1) in a permit and shall amend the permit accordingly.
(3) No person shall use a gas vehicle in contravention of any condition specified in the permit issued in respect of the vehicle.

### Gas Safety (Gas Supply) Regulations 《氣體安全 (氣體供應)規例》

29. Validity of permit
A permit issued in respect of a gas vehicle shall cease to be valid—
(a) upon the expiry of one year less one day after the date of its issue or last renewal, as the case may be, unless renewed under regulation 30;
(b) if the owner of the vehicle specified in the permit ceases to be such owner;
(c) if the vehicle is abandoned or destroyed; or
(d) if the permit is cancelled under regulation 31.

30. Renewal of permit
(1) Subject to subregulation (2), the Authority may, upon—
(a) application to him in the approved form by the owner of a gas vehicle or a person authorized in writing by the owner in that behalf; and
(b) payment of the prescribed fee,
renew a valid permit issued in respect of the vehicle.
(2) Regulation 26(2), (3) and (4) shall apply to an application to renew a permit in the like manner as it applies to an application for a permit.

31. Cancellation of permit
(1) The Authority may, by notice served on the owner of a gas vehicle, cancel a permit issued in respect of the vehicle if the vehicle is found on examination not to comply with the relevant conditions specified in Schedule 2.
(2) The owner of a gas vehicle who is served with a notice under subregulation (1) shall return the permit cancelled by that notice forthwith to the Authority.

32. Notification of change of ownership, etc.
The owner of a gas vehicle in respect of which a permit has been issued shall, if—
(a) he ceases to be such owner; or
(b) the vehicle is abandoned or destroyed,
within 7 days thereafter inform the Authority of such fact, giving such details as the Authority requires, and shall at the same time return the permit to the Authority.

33. Permit to be produced
The owner of a gas vehicle in respect of which a permit has been issued shall produce the permit for—
(a) amendment pursuant to regulation 28(2), when so requested by the Authority; or
(b) inspection, when so requested by the Authority, an inspector or a police officer,
as soon as it is reasonably practicable to do so.