You can lose your permanent residence permit if you stay abroad for too long.
If you are going to stay outside Norway for more than two years and wish to keep your permanent residence permit, you must apply for this.
In very special circumstances you can keep the permanent residence permit even if you have stayed abroad for two years or more. You must fill these four requirements:
You must contact Norwegian authorities as soon as this is practically possible after you were unable to return against your will, and give information about your situation.
The exemption does not cover children who, against their will, have been unable to return or unmarried persons over the age of 18 who have been kept from returning by their parents or others.