Starting on August 1, 2024, dogs entering or returning to the United States must meet new, specific requirements from the CDC – depending on where they have been in the 6 months before entering the U.S. and where they received their rabies vaccinations (if required).
Here are links for further information:
www.cdc.gov/importation/dogs/enter-the-us.html
www.wormsandgermsblog.com/2024/05/articles/animals/dogs/new-us-dog-importation-rules