Without prejudice to Article 50(4)(c), the waste incineration plant or waste co-incineration plant or individual furnaces being part of a waste incineration plant or waste co-incineration plant shall under no circumstances continue to incinerate waste for a period of more than 4 hours uninterrupted where emission limit values are exceeded.
The cumulative duration of operation in such conditions over 1 year shall not exceed 60 hours.
The time limit set out in the second subparagraph shall apply to those furnaces which are linked to one single waste gas cleaning device.