14.—(1) The enforcing authority shall include in all permits authorising any Part B or Part C installation or Part B or Part C mobile plant, such other conditions as appear to the enforcing authority to be appropriate, when taken together with the condition implied by regulation 12(8), for the purpose of preventing or, where that is not practicable, reducing emissions into the air, taking into account, in particular, the general principles set out in regulation 11(2).
(2) Subject to regulation 12(4), in the case of Part B or Part C installations and Part B or Part C mobile plant, the emission limit values required by regulation 12(2) shall be based on BAT for the description of installation or mobile plant concerned but shall take account of the technical characteristics of the particular installation or mobile plant being permitted and, in the case of an installation, its geographical location and the local environmental conditions.
(3) Where a Part B or Part C mobile plant authorised by a permit is used to carry out an activity on the site of an installation which is authorised by a separate permit then, if different requirements are imposed in the permits in respect of the carrying out of the activity, the requirements in the permit authorising the operation of the installation shall prevail in the event of any inconsistency.