CHAPTER III

MONITORING OF EMISSIONS OF STATIONARY INSTALLATIONS
SECTION 3

Measurement-based methodology

Tier requirements
Article 41
1
For each emission source which emits more than 5 000 tonnes of CO 2(e) per year, or which contributes more than 10 % of the total annual emissions of the installation, whichever is higher in terms of absolute emissions, the operator shall apply the highest tier listed in section 1 of Annex VIII. For all other emission sources, the operator shall apply at least one tier lower than the highest tier.
2
Only where the operator can demonstrate to the satisfaction of the competent authority that application of the tier required under paragraph 1 is technically not feasible or incurs unreasonable costs and application of a calculation methodology using the tier levels required by Article 26 is technically not feasible or incurs unreasonable costs, may a next lower tier be used for the relevant emission source, with a minimum of tier 1.