The Auditors Act contains detailed provisions concerning the auditing duty, the approval of auditors, the duties of auditors and the requirements that apply to the performance of auditors’ duties.
Pursuant to this Act, all foreign enterprises with a statutory obligation to keep accounts pursuant to the Accounting Act and that have at least NOK 5 million in operating revenues (which are liable for tax pursuant to Norwegian domestic law) are obliged to have a Norwegian auditor (a registered public accountant or state authorised public accountant) in the year after their revenues exceeded the amount mentioned.