Starting today, anyone coming from states with transmission rates above 10 per 100,000 people on a seven-day rolling average, or 10 percent of the total population testing positive on a seven-day rolling average, must quarantine for two weeks if they travel to New York, New Jersey or Connecticut.

New York Gov. Andrew Cuomo announced the “travel advisory” Wednesday at a briefing joined via video feed by New Jersey Gov. Phil Murphy and Connecticut Gov. Ned Lamont.

Murphy said the states’ health departments will provide details of how the rule will work. "Now the proof is in the pudding. We're seeing it all across the country. What New York is doing is counter to what you're seeing across the nation. They are going up, and we are going down," says Gov. Cuomo.

As of Wednesday states over the threshold included Alabama, Arkansas, Arizona, Florida, North Carolina, South Carolina, Washington, Utah and Texas.

There will be a $2,000 fine for the first violation, $5,000 for the second , and up to a $10,000 fine if you cause harm.

The Westchester County airport is gearing up for how a tri-state travel advisory will impact flights there.

While the airport is currently closed to commercial flights, they're expected to resume in early July.

The states on the list include Florida, which is a popular destination for travelers using the county airport. "With the quarantine they still have in Florida, the 14 day quarantine, and the 14 day quarantine the governor just put in effect, will probably have big impact on flights returning on a timely basis," says Airport Manager Peter Scherrer.