The transport ministers of Bulgaria, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Malta, Poland, Romania, Slovakia and Slovenia claim that such "protectionist practices" restrict the free movement of goods and services across the 28-nation European Union.
"We urge you and your services to take action against protectionist measures which are lately emerging across the EU," the ministers wrote in a letter to EU Transport Commissioner Violeta Bulc and Employment Commissioner Marianne Thyssen on Tuesday.
The Commission seems to agree with them. How will member states react?
And actually passed?