Article 16U.K.Implementation and recordkeeping of modifications
1.Prior to receiving the approval or information in accordance with Article 15(2), the operator or aircraft operator may carry out monitoring and reporting using the modified monitoring plan where they can reasonably assume that the proposed modifications are not significant, or where monitoring in accordance with the original monitoring plan would lead to incomplete emission data.
In case of doubt, the operator or aircraft operator shall carry out all monitoring and reporting, and in the interim documentation, in parallel, using both the modified and the original monitoring plan.
2.Upon the receipt of the approval or information in accordance with Article 15(2), the operator or aircraft operator shall only use the data relating to the modified monitoring plan and carry out all monitoring and reporting using only the modified monitoring plan.
3.The operator or aircraft operator shall keep records of all modifications of the monitoring plan. In each record, the following shall be specified:
(a)transparent description of the modification;
(b)a justification for the modification;
(c)the date of notification of the modification to the competent authority;
(d)the date of acknowledgement, by the competent authority, of the receipt of the notification referred to in Article 15(1), where available, and the date of the approval or information referred to in Article 15(2);
(e)the starting date of implementation of the modified monitoring plan in accordance with paragraph 2 of this Article.