# Regulation (EU) 2017/1938 of the European Parliament and of the Council of 25 October 2017 concerning measures to safeguard the security of gas supply and repealing Regulation (EU) No 994/2010 (Text with EEA relevance), Division 2: Calculation method of the N – 1 formula

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

N−1%=EPm+Pm+Sm+LNGm−ImDmax×100, N – 1 ≥ 100 %
The parameters used for the calculation shall be clearly described and justified.
For the calculation of the EPm, a detailed list of the entry points and their individual capacity shall be provided.

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Source: https://www.legislation.gov.uk/eur/2017/1938/annex/II/division/2 (the official version)
Page: https://openlegislation.uk/eu-regulation-2017-1938/annex-II/division-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.