Well, the page is working again... and it s a 2019 page, updated by CDC
This amendment is effective as of April 14, 2022 at 12:01am EDT.
If you are not fully vaccinated against COVID-19, you will NOT be allowed to board a flight to the United States, unless you meet the criteria for an exception under the Proclamation and CDC’s Amended Order. A booster dose is not needed to meet this requirement.
https://www.cdc.gov/coronavirus/2019...tml#noncitizen
Update november 6:
NEW - TSA has extended the rule that the unvaccinated cannot enter the U.S. until at least January 8 next year.
https://www.tsa.gov/sites/default/fi...544-21-03a.pdf