out in article 21. The Emissions Monitoring Plan must contain the information specified in Schedule 4. 

## Issue of Emissions Monitoring Plans 

24. —(1) If an aeroplane operator submits an Emissions Monitoring Plan for approval by the Regulator in accordance with article 23, a Regulator must approve and issue the Emissions Monitoring Plan unless— 

(a) the Regulator is not satisfied that the application complies with the requirements of this Order; and 

(b) the aeroplane operator has not agreed to amendments of the application required to satisfy the Regulator that the application does so comply. 

(2) An Emissions Monitoring Plan issued under paragraph (1) replaces any Emissions Monitoring Plan previously issued to the aeroplane operator. 

(3) An Emissions monitoring Plan may contain any conditions the Regulator considers necessary to give proper effect to the requirements of this Order. 

(4) An aeroplane operator must comply with any condition included in its Emissions Monitoring Plan. 

## Refusal of application for Emissions Monitoring Plans 

25. —(1) If a Regulator refuses an application for an Emissions Monitoring Plan, the Regulator must give notice to the applicant. 

(2) A notice under paragraph (1) must state— 

(a) the reasons for the decision; and 

(b) if amendments of the application are required in order for an Emissions Monitoring Plan to be issued, the nature of those amendments. 

(3) An aeroplane operator who is given a notice under paragraph (1) must make a revised application to the Regulator before the end of the period of 31 days beginning with the day that the notice was given. 

(4) Article 24 and this article apply to a revised application under paragraph (3) as they apply to the original application, but for the purposes of such a revised application, the references to the period of 2 months in article 19 are to be read as references to a period of 24 days. 

## Modification of the Emissions Monitoring Plan 

26. —(1) An aeroplane operator must notify the Regulator of any proposals for modification of its Emissions Monitoring Plan. 

(2) The aeroplane operator must resubmit the Emissions Monitoring Plan to the Regulator for approval if a material change is made to the information contained within the Emissions Monitoring Plan. 

(3) A material change is a change to the information presented in the Emissions Monitoring Plan that would— 

(a) affect the status or eligibility of the aeroplane operator for an option under the emissions monitoring requirements, or 

(b) otherwise affect the decision by the Regulator with regard to whether the aeroplane operator’s approach to monitoring conforms with the requirements. 

(4) The aeroplane operator must also resubmit the Emissions Monitoring Plan in the event of a change to the information presented in the plan that— 

(a) arises from a change in the availability of data, due to the use of new types of measuring instrument, sampling methods or analysis methods, or for other reasons, which leads to higher accuracy in the determination of emissions, 

