As Connecticut has reported sharp decreases in the number of people hospitalized and deceased from infection with COVID-19, Gov. Ned Lamont joined New York Gov. Andrew Cuomo and New Jersey Gov. Phil Murphy in a joint televised news conference Wednesday to announce the states have agreed to a trilateral advisory requiring travelers from certain other U.S. states to self-quarantine upon arrival.

The governors agreed to a resolution requiring travelers from states “with significant community spread” to self-quarantine for 14 days upon arriving at any of the three states. The advisory went into effect June 25 at midnight and is expected to be updated regularly. States with significant community spread—or a positive test rate of greater than 10 per 100,000 over a seven-day rolling average—were not specifically called out by the governors Wednesday, but this week they included Alabama, Arkansas, Arizona, Florida, North Carolina, Utah and Texas. The governors said they would provide regular updates on which states are affected by the advisory.