What is the quarantine policy for travelers flying into John Glenn from another country?

For international flights into the U.S., as of Jan. 26 passengers are required to provide proof to their airline of a negative viral test result within three days of their flight into the U.S. Some other countries also require passengers undergo testing before arriving on an international flight. Visit www.travel.state.gov for details on each country. In the US, they make you self-quarantine if you are traveling from an area reporting a positivity rate of 15% or higher.

I would think a negative covit within 3 days.