Dot Mark testing is the most common tell for checking glazing on a vehicle is legal, this page will break down what each individual mark means.
Many glasses with the E1 mark in circle are manufactured in Germany. China and Turkey use this kite mark and are not E.U. approved or tested. We have provided the legal list is at bottom of this page.
A legal piece of automotive glass must have marking shown to the side. This is silk printed in white or black and glass by law must carry marks shown at the side. Beware, some toughened glass only carries the first 5 listed.
An E.U. number on its own is not legal it must have all the first 4 markings to be legal.
In the E.U. the E code (with a capital ‘E’) is used for cars in European countries, and indicates the country that certified the windshield. It is a circle with the capital letter E followed by a number. The codes are assigned by the United Nations Economic Commission for Europe.
|E.U. Legal Codes|
|E10||Serbia [and Montenegro]|
|E31||Bosnia and Herzegovina|
|E40||Former Yugoslav Republic of Macedonia|
|E51||Republic of Korea|