The Elverum Authorization ("Elverumsfullmakten") was approved unanimously by the Norwegian Parliament on April 9, 1940 in the town of Elverum in Norway after the Norwegian royal family, executive branch, and parliament had evacuated Oslo to evade capture by German troops in the course of Operation Weserübung during World War II. The Storting main building The Storting, or Stortinget, (the Great Assembly), is the parliament of Norway, and is located in Oslo. ... April 9 is the 99th day of the year in the Gregorian calendar (100th in leap years). ... 1940 (MCMXL) was a leap year starting on Monday (link will take you to calendar). ... County Hedmark Landscape Østerdalen Municipality NO-1101 Administrative centre Elverum Mayor (2003) Terje Røe (Ap) Official language form Neutral Area  - Total  - Land  - Percentage Ranked 80 1,229 km² 1,209 km² 0. ... County Oslo NO-03 Landscape Viken Municipality NO-0301 Administrative centre Oslo Mayor (2004) Per Ditlev-Simonsen (H) Official language form Neutral Area  - Total  - Land  - Percentage Ranked 224 454 km² 426 km² 0. ... Operation Weserübung was the German codename for Nazi Germanys assault on Denmark and Norway during World War II and the opening operation of the Norwegian Campaign. ... Combatants Allied Powers Axis Powers Commanders {{{commander1}}} {{{commander2}}} Strength {{{strength1}}} {{{strength2}}} Casualties 17 million military deaths 7 million military deaths World War II, also known as the Second World War, was a mid-20th century conflict that engulfed much of the globe and is accepted as the largest and deadliest...

The authorization reads, in translated form:

The Storting authorizes the Government, until the time comes when the Government and the presidency of the Storting is able to confer and assemble the Storting to its next ordinary session, to maintain the interests of the realm and make those decisions and determinations on behalf of the Storting and Government, that are considered needed to maintain the country's security and future.

The authorization is of historical significance because it allowed the Norwegian executive branch to assert legitimacy even while in exile.

It is also controversial in that it constituted a complete abandonment of the legislative powers in Norway during the war. The issue was brought to the Norwegian Supreme Court, which ruled that the authorization was legitimate and valid.

Some critics have claimed that the authorization was never formally put to a vote, and that it in any case was invalid because there was no constitutional basis for the Storting to hand over its functions to the executive branch. These critics also claim that the paragraph (§17) invoked in the authorization only authorized emergency powers within the areas of "trade", "customs", "economy" and "police" until the Storting could be seated again.

In any event, the legitimacy of the exiled government was to little extent called into question during or after the war, except by the Quisling government and the German occupying power.