(6) Nationality and registration marks, referred to in paragraph (3)(b), are defined in paragraph 1, Part 2 of Schedule 4 to the Air Navigation Order 2016( a ). 

## Meaning of Regulator 

10. —(1) Subject to paragraph (2) and article 17, the Regulator of an aeroplane operator who has been attributed to the United Kingdom under article 8(1) is— 

(a) the Environment Agency( b ), where the aeroplane operator — 

(i) has its registered office or is resident in England, or 

(ii) does not have a registered office or is not resident in the United Kingdom, 

(b) the NRW, where the aeroplane operator has its registered office or is resident in Wales, 

(c) the SEPA where the aeroplane operator has its registered office or is resident in Scotland, 

(d) the chief inspector, where the aeroplane operator has its registered office or is resident in Northern Ireland. 

(2) For an aeroplane operator who is administered as an aircraft operator under the UK ETS Order in a scheme year, the Regulator is the regulator specified in that Order. 

## Regulator tasks 

11. —(1) A Regulator must approve an aeroplane operator’s compliance on the basis of satisfactory evidence that the aeroplane operator meets requirements that are at least equal to the applicable standards specified in this Order. 

(2) A Regulator must, by 30th October in each scheme year, provide the Secretary of State with a list of verification bodies accredited in the part of the United Kingdom for which it is responsible under article 10 containing the required information described in Schedule 5, Table 3. 

(3) The Secretary of State must submit to ICAO a list of verification bodies which are accredited in the United Kingdom containing the required information described in Schedule 5 , Table 3, and in accordance with the relevant timeline set out in Schedule 1. The Secretary of State may submit updates to this list to ICAO on a more frequent basis. 

## Record keeping 

12. —(1) Each aeroplane operator must keep records relevant to the requirements of this Order for a period of 10 years. 

(2) The Regulator of an aeroplane operator must keep records relevant to that aeroplane operator’s CO$_{2}$ emissions per State pair during 2019 and 2020 in order to calculate each aeroplane operator’s offsetting requirements during the 2030-2035 compliance periods. Those records must be kept for the duration of CORSIA and the 5 years following the end of CORSIA. 

## Compliance periods and timeline 

13.  The Secretary of State, and each Regulator and aeroplane operator must comply with the requirements of this Order in accordance with the relevant timeline set out in Schedule 1. 

## Equivalent procedures 

14. —(1) The use, in relation to an aeroplane operator, of equivalent procedures in lieu of the procedures specified in this Order, must be approved by the Secretary of State with the assistance of the Regulator of that aeroplane operator. 

