Starting today, Norway will no longer require vaccinated U.S. visitors to quaranatine upon arrival. They must still show a negative covid test.
According to the U.S Embassy in Norway, the test must be taken within 24 hours of arrival in Norway or within 24 hours of your first flight to Norway if arriving by air.
Here's what the U.S. Embassy website says:
Travel to Norway:
*** Effective January 26, 2022, the quarantine requirement when entering Norway is discontinued. All travelers to Norway from outside the EU, EEA, Switzerland, and the United Kingdom must complete entry registration and test upon arrival regardless of vaccination status or nationality. Those who cannot prove with an EU Digital COVID-19 Certificate that they are fully vaccinated or have recently recovered from COVID-19 (e.g. CDC card holders), must also present a negative COVID-19 test taken 24 hours before arrival in Norway. If one arrived by airplane, then the test may have been taken within the 24 hours prior to the scheduled departure time of the first flight enroute to Norway. All travelers are required to complete entry registration. Find more information about the removal of quarantine when entering Norway by reading the Government of Norway’s press release and/or under Country-Specific Information below.