(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 ).  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—  (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.  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.  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.  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.  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.  ( a ) S.I. 2016/765, to which there are amendments not relevant to this Order.  ( b ) The Environment Agency was established by section 1 of the Environment Act 1995 (c. 25).  10 Compliance periods and timeline  Equivalent procedures  Record keeping  Regulator tasks  Meaning of Regulator  (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,  (a) the Environment Agency( b ), where the aeroplane operator —  (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. 