CHAPTER IIMONITORING PLAN
SECTION 1General rules
C1Article 16Implementation and record-keeping of modifications
1
Before receiving 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 it 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 cases 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 receipt of 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 from the date from which that version of the monitoring plan is applicable.
3
The operator or aircraft operator shall keep records of all modifications of the monitoring plan. Each record shall contain:
a
a transparent description of the modification;
b
a justification for the modification;
c
the date of notification of the modification to the competent authority pursuant to Article 15(1);
d
the date on which the competent authority acknowledged 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.