Norway actually has a national standard called SAF-T https://www.skatteetaten.no/en/business-and-organisation/start-and-run/best-practices-accounting-and-cash

Norway actually has a national standard called SAF-T https://www.skatteetaten.no/en/business-and-organisation/start-and-run/best-practices-accounting-and-cash-register-systems/saf-t-financial/ https://www.skatteetaten.no/en/business-and-organisation/sta... > SAF-T Financial is a standard format used in the exchange of accounting data. SAF-T, or Standard Audit File-Tax, is the result of a joint development collaboration between the business community, the accounting sector and the Norwegian Tax Administration, based on a recommendation by the OECD.