Residence permit

More about residence permit for citizens from countries outside the EEA:

 Application forms

Most scientific staff offered employment at the university should apply for residence permit as a skilled worker

For work at the university for a duration of less then 90 days:
- If you have an employer in Norway (the university), you do not need a residence permit for employment relationships of up to three months’ duration if you belong to the group researchers or lecturers.
-If you need a visa, you have to apply for a Schengen-visa (C-visa) to enter Norway.

Guest researchers may come under the regulation for Residence permit for researcher with own funds

Other guests might be considered 'businiss travellers':
Business travellers from countries with a visa requirement, who will be in Norway for less than three months over a six-month period, and who will not be receiving a wage from the Norwegian client/partner for their stay, do not require a work permit. However, they are subject to the same visa rules as all other visa applicants.

There is no requirement for companies/businesses to submit a guarantee declaration. It is sufficient to provide a written invitation on the headed paper of the company in Norway, explaining who will be coming, how long they will be staying in Norway, and the purpose of their stay. If the inviting company is accepting financial responsibility with regard to the travel costs and stay, this must be made clear in the invitation. In the case of small companies/businesses, the invitation must state the company registration number as listed in the Brønnøysund register.