Where to check your state to see if quarantine required to enter NY

All travelers entering New York who have recently traveled within a state with either:
• a case rate higher than 10 per 100,000 residents over a seven-day rolling
average; or
• a testing positivity rate of higher than a 10% over a seven-day rolling average,
will be required to quarantine for a period of 14 days consistent with the Department of Health (DOH) regulations for quarantine.

The seven-day rolling average for a case rate of no more than 10 per 100,000 residents for any particular state can be found at:

https://coronavirus.jhu.edu/testing/individual-states

The seven-day rolling average for a positive test rate of no higher than 10% in any particular state can be found at:

https://www.washingtonpost.com/graphics/2020/national/coronavirus-us-cases-deaths/