As of March 19, 2021, Governor Lamont’s Executive Order No.9S, Section 1 regarding travel is no longer in effect.
Connecticut residents and travelers to Connecticut should follow travel-related guidance from the Centers for Disease Control and Prevention (CDC) and the Connecticut Department of Public Health (CT DPH). Mandates and requirements are not currently in place in Connecticut.
CDC Travel-related guidance can be found here: https://www.cdc.gov/coronavirus/2019-ncov/travelers/travel-during-covid19.html
CDC’s guidance for post-travel quarantine and testing:
https://www.cdc.gov/coronavirus/2019-ncov/travelers/travel-during-covid19.html#after-you-travel