Montana is now one of ten states added to the quarantine list in Connecticut, New York and New Jersey.
Under the 14-day quarantine travel advisory announced by the governors of the Tri-State area, individuals people with increasing rates of COVID-19 are advised to self-quarantine for 14 days.
This includes travel by train, bus, car, plane and any other method of transportation.
The quarantine order applies to any state with a positive test rate higher than 10 per 100,000 residents over a seven-day rolling average or a state with a 10% or higher positivity rate.
New York, once the epicenter for COVID-19 in America, has seen a steady decline of cases over the last month.