Schedule 6, Part 2 Greenhouse gas emissions permits and hospital or small emitter permits (paras. 6-12)
(1) The operator of an installation -
(a) may apply to the regulator to vary the installation'spermit;
(b) must apply to the regulator to vary the installation's permit where required by a condition of the permit.
(2) The regulator may vary an installation's permit at any time if the regulator considers that it is necessary to do so for the purposes of the UK ETS and in particular may do so in consequence of any of the following -
(a) a report of the operator referred to in Article 69 of the Monitoring and Reporting Regulation 2018;
(b) a notification under a condition included under paragraph 4(1)(i) (notification of planned changes in operation);