The European Medicines Agency (EMA) may issue a judgment on the corona vaccine from AstraZeneca and Oxford University before the end of this month.
The EMA says it expects an official application from the makers next week.
The AstraZeneca vaccine will then become the third COVID-19 vaccine under evaluation by the EMA.
Pfizer-BioNTech and Moderna vaccines have been previously approved.
The former vaccine was taken into use in the Netherlands this week.
The vaccine from AstraZeneca and Oxford University is used according to the Dutch vaccination strategy for 18 to 60-year-olds, both with and without a medical indication, and some of the healthcare workers.
The vaccines from CureVac, Janssen and Sanofi are also reserved for this group.
The United Kingdom became the first country in the world to adopt the AstraZeneca vaccine on Monday.
This happened after the British drug authorities had previously approved the drug for emergency use.
At the EMA, this concerns an application for a marketing authorization, for which the makers of the vaccine must provide more information.
The European regulator has been watching the AstraZeneca investigation since October.
This is called a rolling review.
For example, the inspectors have already seen and studied all the data on how the medicine works when the application for authorization comes in, allowing them to make a decision more quickly.
First Briton gets AstraZeneca vaccine: 'I felt nothing'
See also: Overview: Who can get vaccinated against the corona virus and when?