To my best knowledge today (13th July 2012), the following
countries have adopted the ISO 31000 standard as their official
risk management standard :
Austria, Australia, Brazil, Canada, France, Germany,
Great-Britain, Italy,
Ireland, the Netherlands, New-Zealand, Norway, Poland,
South-Africa, Spain,
Sweden, Russia, USA, etc.
PS : Look at the First international conference on ISO 31000 -
May 21 and 22 in Paris (check link).