CSI is the reference point for the certification of the conformity of materials, products, systems, and firms. It is a technology hub with a team of 400 engineers, physicists, and microbiologists, who test the quality of the products in their testing laboratories. One of the products that are being tested daily in these laboratories is the EN 1279 glass, the one used to build insulating glass walls. The testing of this glass has become mandatory from 1st July 2013, after the issuing of the UE Regulation n. 305/2011. This regulation states that all the main products used in a construction project (from the basic parts to the fireproof devices) must have the CE labelling. The CE labelling can be placed directly on the product, on the packaging or delivered together with the other commercial documents, and, based on the kind of product we are delivering, needs to be accompanied by the Declaration of Performance (DoP). With these two documentations the producer is committed to provide a product which is compliant with the performances declared in the DoP. Moreover, the CE labelling allows the product to be shipped to all the UE countries, as it certifies that it has the all the necessary requirements. Depending on the type of product that carries the CE labelling, there could be the need for a specific Notified Body (NB) to carry out some inspections. These inspections are needed to make sure that the production sites are always controlled and safe and that the producer carries the essential internal inspections of the factory (FPC – Factory Production Control). Vetreria Cappelletti e Roleri has been recognized the UNI Certification since January 2017 and the lastest renewal arrived in January 2021. The code of our UNI Certification is: UNI EN 1279: 2018 parts 1;2; 3 e 4.