The requirement is for those who handed in their application documents to the police, embassy, consulate or Visa Application Centre 20 April 2018 or after.
The 24-year age limit was introduced for spouses and cohabitants on 1 January 2017. Now it has also been introduced for those who are applying for a residence permit to get married in Norway.
The Norwegian parliament and government introduced this new requirement.
Read more about the new requirement and about who is eligible for exemption.