Norwegian law does not provide authority for the collection of social security contributions when an employee works outside Norway and is paid from outside Norway.  Consequently, Article 5.2(c) stipulates that an employee who is sent from Norway to work temporarily in the United States will not be covered by Norway under Article 5.2(a) unless the employee is on a Norwegian payroll.  If the employee is on a non-Norwegian payroll, he or she will be subject only to U.S. law in accordance with the general territoriality rule in Article 5.1.