ANNEX IITier thresholds for calculation-based methodologies related to installations (Article 12(1))

2.Definition of tiers for calculation factors for combustion emissions

2.3.Tiers for oxidation factors

Tier 1

The operator shall apply an oxidation factor of 1.

Tier 2

The operator shall apply oxidation factors for the respective fuel in accordance with points (b) or (c) of Article 31(1).

Tier 3

For fuels, the operator shall derive activity-specific factors based on the relevant carbon contents of ashes, effluents and other wastes and by-products, and other relevant incompletely oxidised gaseous forms of carbon emitted except CO. Composition data shall be determined in accordance with Article 32 to 35.