http://www.legislation.gov.uk/eur/2018/2067/article/16Commission Implementing Regulation (EU) 2018/2067 of 19 December 2018 on the verification of data and on the accreditation of verifiers pursuant to Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance)Commission Implementing Regulation (EU) 2018/2067Commission Implementing Regulation (EU) 2018/2067 of 19 December 2018 on the verification of data and on the accreditation of verifiers pursuant to Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance)King's Printer of Acts of Parliamenthttps://webarchive.nationalarchives.gov.uk/eu-exit/https://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX:32018R2067texttext/xmlen2025-02-17Expert Participation2025-01-01 CHAPTER II <Strong>VERIFICATION</Strong> Data verificationArticle 161The verifier shall verify the data in the operator's or aircraft operator's report by applying detailed testing of the data, including by tracing the data back to the primary data source, cross-checking data with external data sources, performing reconciliations, checking thresholds regarding appropriate data and carrying out recalculations.2As part of the data verification referred to in paragraph 1 and taking into account the approved monitoring plan ..., including the procedures described in that plan, the verifier shall check:afor the purposes of verifying an operator's emission report, the boundaries of an installation;b. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .cfor the purposes of verifying an operator's emission report, the completeness of source streams and emission sources as described in the monitoring plan approved by the competent authority;dfor the purposes of verifying an aircraft operator's emission report and tonne-kilometre report, the completeness of flights covered by an aviation activity ... for which the aircraft operator is responsible as well as the completeness of emission data and tonne-kilometre data respectively;efor the purposes of verifying an aircraft operator's emission report and tonne-kilometre report, the consistency between reported data and mass and balance documentation;ffor the purposes of verifying an aircraft operator's emission report, the consistency between aggregated fuel consumption and data on fuel purchased or otherwise supplied to the aircraft performing the aviation activity;gthe consistency of the aggregated reported data in an operator's or aircraft operator's report with primary source data;hwhere an operator applies a measurement-based methodology referred to in Article 21(1) of Implementing Regulation (EU) 2018/2066, the measured values using the results of the calculations performed by the operator in accordance with Article 46 of that Implementing Regulation;ithe reliability and accuracy of the data.3For the purposes of checking the completeness of flights referred to in point (d) of paragraph 2, the verifier shall use an aircraft operator's air traffic data, including data collected from Eurocontrol or other relevant organisations which can process air traffic information such as that available to Eurocontrol.Words in Art. 16(2) omitted (31.12.2020) by virtue of The Greenhouse Gas Emissions Trading Scheme (Amendment) (EU Exit) (No. 2) Regulations 2019 (S.I. 2019/916), regs. 1, 20(a); 2020 c. 1, Sch. 5 para. 1(1)Art. 16(2)(b) omitted (31.12.2020) by virtue of The Greenhouse Gas Emissions Trading Scheme (Amendment) (EU Exit) (No. 2) Regulations 2019 (S.I. 2019/916), regs. 1, 20(b); 2020 c. 1, Sch. 5 para. 1(1)Art. 16(2)(c) substituted (31.12.2020) by The Greenhouse Gas Emissions Trading Scheme (Amendment) (EU Exit) (No. 2) Regulations 2019 (S.I. 2019/916), regs. 1, 20(c); 2020 c. 1, Sch. 5 para. 1(1)Words in Art. 16(2)(d) omitted (31.12.2020) by virtue of The Greenhouse Gas Emissions Trading Scheme (Amendment) (EU Exit) (No. 2) Regulations 2019 (S.I. 2019/916), regs. 1, 20(d); 2020 c. 1, Sch. 5 para. 1(1)