It is a combination of three stylized letters: ‘E’, ‘A’ and ‘C’, with the same proportions, height and width. There is a contrasting background and the mark has to contrast with color of the surface of the product or its label, which it is put on.
The sign can be put on the product (label, package) in any way, but is has to be clearly visible during the lifetime of the product.
If the product has passed all conformity procedures of the Customs Union, manufacturers or suppliers can mark it with a unified conformity sign. Then it should be on each unit product, packaging or documentation, if it possible, next to the manufacturer’s trademark.
What concerns marking replacement parts with a conformity sign of the Customs Union, according to the technical regulation, which will entry into force 1 January 2015, the sign must be put directly onto the unit product (if it is possible) and/or tag (if any) and also onto the packaging and technical documentation.
There is also a possibility to mark parts with the official approval marks "E" or "e":
It is equivalent to marking with conformity sign of the Customs Union. There is no need to mark the product with a conformity sign.
The letter ‘E’ in this sign mean compliance with the European standard. The number near to the letter indicates producer’s country, for example, 1-Germany or 22-Russia. There is also a number of the Rule of the Geneva agreement in accordance to which the product is marked (104 R).
Before the date 01.01.2015, replacement parts are to be marked with the ‘PCT’ or ‘CTP’ signs of conformity, according to the old technical regulations. There is a sample: