The following are guidelines on COVID-19 quarantine according to the U.S. CDC, as of the latest page update on 19 October:

Quarantine if you have been in close contact (within 6 feet of someone for a cumulative total of 15 minutes or more over a 24-hour period) with someone who has COVID-19, unless you have been fully vaccinated. People who are fully vaccinated do NOT need to quarantine after contact with someone who had COVID-19 unless they have symptoms. However, fully vaccinated people should get tested 5-7 days after their exposure, even if they don’t have symptoms and wear a mask indoors in public for 14 days following exposure or until their test result is negative.

When will the CDC eliminate quarantine restrictions for close contacts of COVID-19 cases?

This will resolve as the date when CDC updates its “Quarantine and Isolation” page to reflect that it is eliminating the quarantine restrictions for close contacts of COVID-19 cases.

While the relevant guidance for resolution to occur should lift the quarantine restriction for all close contacts, it need not lift its recommendation for testing or mask-wearing for positive resolution.

If this does not occur before 1 May 2022, it resolves as > 1 May 2022.