The sale of various components, parts, systems and separate technical mechanisms on motor vehicles and trailers in our country and European Union countries are subject to certain criteria. In this respect, while directives were issued on 100 for the European Union countries, regulation was issued by the United Nations Economic Commission around 130. The number of these is increasing with the updates. The main objective of both applications is to fulfill the obligation to comply with the structure of roads and traffic safety during the production and use of motor vehicles, to take care of human health and to protect the natural environment.

This application by the European Union is known as e-Mark, while the application by the United Nations Economic Commission for Europe is called E-Mark. European Union e-Mark application covers only European Union countries. The two-digit country codes are set for some countries as follows: e1 Germany, e2 France, e3 Italy, e4 Netherlands, e11 UK, e17 Finland, e23 Greece and e50 Malta. The application of the United Nations Economic Commission for Europe includes other countries as well as the European Union. Again, the two-digit country code is defined as follows: for some countries: E1 Germany, E2 France, E3 Italy, E4 Netherlands, E11 England, E17 Finland, E23 Greece, E28 Belarus, E31 Bosnia and Herzegovina, E37 Turkey, E40 Macedonia, E43 Japan and E47 South Africa.

In both systems, E mark and E logo may be used on products whose tests and controls have been completed by authorized organizations. However, in this case the sale of these products is possible.

TÜRCERT Technical Control and Certification Inc., to be put on the market of motor vehicles and trailers parts, parts, systems and separate technical equipment, European Union Commission regulations, in our country in accordance with the legal regulations and European Union safety standards in accordance with by giving approval to products allows the use of E logo.