In order to obtain confirmation of Life Certificates for 2021, NAV (the Norwegian Labour and Welfare Administration) has in the cover letter and on the following web page Life certificates to pension recipients abroad - nav.no informed that it is not required to refer to the Norwegian Embassy in order to get the confirmation. It is sufficient with a signature of two witnesses when submitting the scheme to NAV.
If an Embassy confirmation is desired, please be aware that it is considered as a notarial certification and hence subject to a fee. The price for notarial certifications is 110,- ILS or 288,- Norwegian Krones Notarial certification | Norges Domstoler
In order to obtain an Embassy confirmation, it is necessary to make an appointment with the Embassy in advance, and the fee has to be paid prior to the appointment.