The tasks of Greenlandic Museums are defined in Landsting Regulation No. 6 of 30 October 1998 and Landsting Regulation No. 4 of 21 May 2004. These regulations defines the purpose of museum work, gives guidelines for grants and support to local museums in Greenland and finally defines the role of the Museum Board.

Greenland National Museum and Archives (NKA) also manages Conservation Act from Landsting Act No. 18 of 19 November 2007 on the conservation of soil, ancient monuments and buildings. Conservation Laws indicates the extent of NKAs obligations in the work of ancient monuments and valuable buildings.

Archive tasks are formulated in Act No. 22 of 30 October 1998 to ensure posterity historical source material. This is done by collecting, recording and organizing archival material from public and private institutions. Furthermore, the Greenland Archive store archival records to secure information on the Greenland people and communities for public use and for future research.

Additionally the Greenland Archive plays an important role as archival authority, as well as a consultant in records and archival issues of public institutions and corporations.

Otherwise NKA is involved in a number of workspaces via the provisions in laws and systems regarding the use and protection of nature.