CHICAGO (WLS) -- Chicago announced an update to the city's COVID-19 travel order Tuesday, with Alaska, North Dakota and Puerto Rico added to the yellow tier, which does not require a quarantine or pre-arrival test.
They join Hawaii as the only places in the yellow tier, while 46 states remain in the orange tier.
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Travelers from states in the orange tier must either quarantine for 10 days or test negative for COVID-19 within 72 hours of arrival. Travelers from yellow states do not need to quarantine or test before arrival.
A state in the yellow tier has less than 15 daily cases per 100,000 people. States in the orange tier have more than 15 cases per 100,000 people.
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Essential workers are exempt from the travel order. The city recommends canceling all non-essential travel to stop the spread of COVID-19. Other exemptions include travel for medical care, parental shared custody and passing through a state for less than 24 hours.
The updated travel order will take effect on Friday. The order is updated every other Tuesday.