reg 11C Limited operating hours – existing medium combustion plant
(1) An existing medium combustion plant which operates for no more than 500 operating hours per year, as a rolling average over a period of five years, is not required to comply with the emission limit values set out in Part 1 of Annex 2 during that period of five years, provided that the operator has signed a declaration in accordance with paragraph 7 of Annex 1 before the start of that period of five years. (2) An existing medium combustion plant which operates for no more than 1,000 operating hours per year, as a rolling average over a period of five years, is not required to comply with the emission limit values set out in Part 1 of Annex 2 where it operates to produce heat in cases of exceptionally cold weather events during that period of five years, provided that the operator has signed a declaration in accordance with paragraph 7 of Annex 1 before the start of that period of five years.