Paragraph 33 Data gapsF1
Where data relevant for the determination of a ship’s maritime emissions for one or more voyages are missing, the maritime operator must use surrogate data calculated in accordance with the alternative method or methods indicated in the emissions monitoring plan.
Where data relevant for the determination of a ship’s maritime emissions for one or more voyages are missing, for which the emissions monitoring plan does not list alternative monitoring methods or alternative data sources for corroborating data or for closing the data gap, the maritime operator must use an appropriate estimation method for determining conservative surrogate data for the respective time period and missing parameter.
Where, for technical reasons, it is temporarily not feasible to apply the approach to monitoring set out in the emissions monitoring plan, the maritime operator must—
apply a method based on alternative data sources listed in the emissions monitoring plan for the purpose of performing corroborative checks; or
if such an alternative is not contained in the emissions monitoring plan, an alternative method which provides surrogate data or a conservative estimation until the conditions for application of the emissions monitoring plan have been restored.
The maritime operator must take all necessary measures to achieve a prompt application of the emissions monitoring plan.
Where an estimation method is used in accordance with sub-paragraph (2), or where a temporary deviation from the emissions monitoring plan occurs in accordance with sub-paragraph (3), the maritime operator must without undue delay—
develop a written procedure for avoiding this type of data gap in the future;
vary the emissions monitoring plan.