# Commission Delegated Regulation (EU) 2019/331 of 19 December 2018 determining transitional Union-wide rules for harmonised free allocation of emission allowances pursuant to Article 10a of Directive 2003/87/EC of the European Parliament and of the Council (Text with EEA relevance), Division 6: The product-related historical activity level for the baseline period for products to which the hydrogen product benchmark as referred to in Annex I applies shall be determined according to the following formula:

Extent: E+W+S+N.I.

HALH2=ARITHMETIC MEANHALH2+CO,k×1−1−VFH2,k0,4027×0,00008987 tNm3
whereby:
HALH2 historical activity level for hydrogen production referred to 100 % hydrogen
VFH2,k historical production volume fraction of pure hydrogen in the total volume of hydrogen and carbon monoxide in year k of the baseline period
HALH2 + CO,k historical activity level for hydrogen production referred to historical hydrogen content expressed as norm cubic meters per year referring to 0 °C and 101,325 kPa in year k of the baseline period

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Source: https://www.legislation.gov.uk/eur/2019/331/annex/III/division/6 (the official version)
Page: https://openlegislation.uk/eu-regulation-2019-331/annex-III/division-6
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.