COMMISSION IMPLEMENTING REGULATION (EU) 2023/2122 of 12 October 2023 amending Implementing Regulation (EU) 2018/2066 as regards updating the monitoring and reporting of greenhouse gas emissions pursuant to Directive 2003/87/EC of the European Parliament and of the Council ‘ANNEX IIa Tier definitions for calculation-based methodologies related to regulated entities ‘ANNEX IX Minimum data and information to be retained in accordance with Article 67(1) ‘ANNEX Xa Reports on fuel suppliers and fuel use of stationary installations and, where relevant, aircraft operators and shipping companies ANNEX Xb Reports on released fuels by regulated entities