The long-standing norm was decided to be reimposed by the EU Commission at the end of July, but it is already in force.
That implies that in airports that had been utilizing modern technology to permit travelers to bring larger volumes of liquid, the cap of 100 milliliters for each individual container will be reinstated.
Airports in the EU, Iceland, Switzerland, Liechtenstein, and Norway (EEA) are all covered by the ruling.
According to the Europe section of Airports Council International (ACI), airports in a select few nations, including Germany, Ireland, Italy, Lithuania, Malta, the Netherlands, and Sweden, had already installed C3 scanners.
Liquids are restricted because liquid bombs are difficult for conventional security technology, such as X-ray machines, to detect.
The EU Commission stated that a transient technical problem was the reason behind their decision rather than being “in response to any new threat”.
It stated that data had shown the performance of the scanners “did not meet the standard for which it had been approved”.
It follows the April postponement of plans to lift the 100-mL rule for all UK airports by June of this year.