Countries in the European Union are to start vaccinating people as of December 27, European Commission President Ursula von der Leyen said.
Some countries will begin rolling out the vaccine on December 28 or 29, von der Leyen said in a tweet.
The plan depends on the authorization of the vaccine manufactured jointly by BioNTech and Pfizer, European Commission spokesman Eric Mamer said.
A recommendation is expected on December 21 by the European Medicines Agency (EMA). The commission could then decide on its approval within two days.
The companies want to start deliveries on December 26, Mamer said.