Email from The Spain Tourism Board today:

SPAIN WILL CONTINUE TO WELCOME VACCINATED TRAVELERS FROM THE U.S.

Starting at 00:01 (in Spain) on Monday, September 6, the U.S. will not be on Spain's list of countries exempted from restrictions for travelers, as a result of the elimination of the U.S. from the list of countries considered safe in the COVID context of the European Union.

However, Spain will continue to admit vaccinated travelers from the U.S. who have received both doses of the Pfizer or Moderna vaccines, or the single dose of the Johnson & Johnson vaccine (or any other vaccines approved by the WHO), at least 14 days prior to arrival in Spain, as well as unvaccinated children under 12 years of age who accompany them.

Travelers must provide the official CDC vaccination card and fill out an online health control questionnaire before traveling.

In Spain, 70.5% of the population has already completed the vaccination cycle, and 77.2% have already received at least one dose. It is the third country in Europe with the highest percentage of completed vaccinations.