There is a number of flag flying days in Norway. Dates when the Norwegian state flag is flown by all branches of government and state agencies are listed in Article 4 of the regulations concerning the use of the state flag and the merchant flag, as modified by Royal Resolution of 3 December 2004. Civilians are also encouraged to display the national flag on these flag flying days. The flag is flown on the birthday of a member of the Norwegian Royal House, on some Christian holidays and on the dates of significant events of Norwegian history.