Swedish to English Bus/Financial Accounting Auditor's report

This appears at the end of an auditor's report for a company's annual accounts. The accountant has stated this under their name instead of the usual "Auktoriserad revisor", as follows:

Göteborg, 30 april 2014
N.N.
Revisor FAR


Is "Revisor FAR" a recognised qualification? If so, how should it be translated: accountant qualified by FAR, accountant authorised by FAR, FAR-qualified accountant? Or does it just mean an accountant who is also a member of FAR? In which case, I guess we would translate it as "Accountant, Member of FAR".

Any opinions?