2.—(1) Where a greenhouse gas emissions permit has been granted in respect of an installation that is an excluded installation, the regulator must vary the greenhouse gas emissions permit (with effect from a date to be included in the permit) so that the provisions of the permit are replaced by provisions that satisfy the requirements of paragraph 3.
(2) When a permit is varied under sub-paragraph (1)—
(a)the regulator may make only such variations as appear to the regulator to be necessary in consequence of the installation being an excluded installation; but
(b)that is without prejudice to the duty to vary the permit in accordance with regulation 88(6).
(3) A variation of a permit under this paragraph does not affect any obligations of the operator under the permit in respect of emissions arising prior to 1st January 2013.