My friend spoke to her brother who lives in Norway, below is his reply
Hi Dave,
Have spoken to my brother and he confirmed what I have already said. From 1st Nov to 1st Monday after Easter Sunday you MUST have winter tyres. The fine for not having them is 5200.00 NKr, around £500.00. Chapter and verse can be found on
www.vegvesen.no
All pages can be translated, I just had to click on an icon next to the star in the upper right hand corner of Chrome once I was on that site. Translation is good, except they do not know how to spell tyres! They spell it ‘tires’ on the web site, (or is the translation through Google?) There are separate rules for North of Norway, but that is only that in that region they can use studded tyres and chains for longer into spring due to more severe road conditions. Studded tyres are not compulsory, but recommended. Winter tyres ARE compulsory.
Vidar said that he would not attempt a trip to Nordkapp without studded tyres in Feb. He should know, he has lived in Norway all his life. Although I left Norway a long time ago, I would not even dream of going without studded tyres. You remember how good they were when I got some for my Fiesta before we spent Christmas in Norway.. They even came in handy here in Southend when we had snow for long periods.
Hope this will clear things up. xx