(CNN)New York, New Jersey and Connecticut issued a travel advisory Wednesday that requires people arriving from states with high coronavirus rates to quarantine for 14 days.
The travel advisory applies to anyone coming from a state with a positive test rate higher than 10 per 100,000 residents over a 7-day rolling average or a state with a 10% or higher positivity rate over a seven-day rolling average, according to a joint announcement from the governors of the three states.
"We have to make sure the virus doesn't come in on a plane," said New York Gov. Andrew Cuomo.
As of Wednesday, the advisory applies to Alabama, Arkansas, Arizona, Florida, North Carolina, South Carolina, Utah and Texas. It begins tonight at midnight.
Each of New York, New Jersey and Connecticut will be responsible for its own enforcement of the quarantine. The states' health commissioners will pursue an aggressive public relations campaign at airports, highways and other locations.
In New York, Cuomo said, those violating the quarantine could be subject to a judicial order and mandatory quarantine, and fines are $2,000 for the first violation, $5,000 for the second violation, and $10,000 if you cause harm.
New Jersey Gov. Phil Murphy said the advisory applies to everyone, including New Jerseyans returning home.
"This is not a polite recommendation, this is a strong advisory built on the back of the healthcare professionals," he said. "We are asking folks to take on a big amount of personal responsibility here, to do the right thing for themselves as well as for their families, communities and the rest of us."
When asked about the possibility of fines, he said the health commissioner "has within her powers to directly address an individual who is non-compliant."