accordance with article 37(6) and (7). 31st July 2036 The Secretary of State must submit required  information regarding CO$_{2}$ emissions for 2035  to ICAO in accordance with article 33(3).  31st October 2036 The Regulator must obtain and use the Sector’s  Growth Factor (SGF) for 2035 from the ICAO  document entitled “CORSIA Annual Sector’s  Growth Factor (SGF)”.  Article 70(2)  SCHEDULE 2  Fuel use monitoring methods  Fuel Use Monitoring Methods  Introduction  Method A  ( a ) See Attachment C-1 in Volume IV of Annex 16 to the Chicago Convention for a process diagram for monitoring fuel use by  flight using Method A.  46 T$_{N+1}$ = Amount of fuel contained in aeroplane tanks once fuel uplifts for the subsequent flight (i.e.  flight $_{N+1}$) are complete (in tonnes); and  T$_{N}$ = Amount of fuel contained in aeroplane tanks once fuel uplifts for the flight under  consideration (i.e. flight $_{N}$) are complete (in tonnes);  F$_{N}$ = Fuel used for the flight under consideration (i.e. flight $_{N}$) determined using Method A (in  tonnes);  where—  3. —(1) The aeroplane operator must use the following formula to compute fuel use according to  Method A( a )—  Fy= Ty —- Tye t+ Uxsı 2.  The aeroplane operator, with the exception of an aeroplane operator eligible to use the CERT,  must choose from the following Fuel Use Monitoring Methods—  (2) Any equivalent procedures to those contained in this Schedule must only be allowed after  prior application to and approval by the Regulator for the aeroplane operator concerned.  1. —(1) The procedures specified in this Schedule are concerned with the monitoring of fuel use  by aeroplane operators. The methods proposed are representative of the most accurate established  practices.  (a) Method A,  (b) Method B,  (c) Block-off/Block-on,  (d) Fuel Uplift, or  (e) Fuel Allocation with Block Hour. 