As of today, passengers boarding flights from the EU must ensure liquids, aerosols, and gels are all under 100ml, as the limit has returned due to technical issues with the new scanners.
The UK made a similar move earlier this year prompting all airports that had the new C3 scanners and had dropped the limit to return to the older rules.
Dublin Airport in Ireland is one EU airport that dropped the limit following the installation of the new scanners, and passengers need to be aware that it has returned.
Most airports in the EU still operate under the old rules as the rollout, like in the UK, has been slow but the EU is reminding passengers to ensure they know the rules for the airport they are travelling from, in particular, Germany, Ireland, Italy, Lithuania, Malta, the Netherlands and Sweden.
C3 or CT X-ray scanners are being brought in as they can effectively spot liquid explosives better than conventional aircraft scanners but new technical advice has prompted a revision of their reliability.
Like the UK, the EU Commission said the move was not in response to any specific threat but that the new scanners did not meet the performance that they were certified for.