2.3. Tiers for oxidation factors U.K.
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.