13—(1) Where the Authority considers it appropriate to do so in connection with the provision made by section 12, it may, with the consent of the Department, make—
(a)modifications of the conditions of a gas supply licence held by a particular person;
(b)modifications of the standard conditions of gas supply licences.
(2) The power to make modifications under this section includes power to make incidental, consequential or transitional modifications.
(3) Before making a modification under this section, the Authority must consult—
(a)the holder of any licence being modified; and
(b)such other persons as the Authority considers appropriate.
(4) Subsection (3) may be satisfied by consultation that took place wholly or partly before the commencement of this section.
(5) The Authority must publish every modification made by it under this section.
(6) The publication must be in such manner as the Authority considers appropriate.
(7) A modification under subsection (1)(a) of part of a standard condition of a gas supply licence does not prevent any other part of the condition from continuing to be regarded as a standard condition for the purposes of the Gas Order.
(8) Where the Authority makes modifications under subsection (1)(b) of the standard conditions of gas supply licences, the Authority must—
(a)make (as nearly as may be) the same modifications of those standard conditions for the purposes of their incorporation in gas supply licences granted after that time; and
(b)publish the modifications in such manner as it considers appropriate.
(9) The Authority's powers under this section are exercisable only during the 18 months beginning with the commencement of this section.
(10) In this section “gas supply licence” means a licence under Article 8(1)(c) of the Gas Order.