National Auto Glass holds the E Mark certification, which is the
premium quality assurance mark in the International Automotive glass world today. The E Mark is the ONLY safety mark that is accepted globally. National Auto Glass undergoes a rigorous annual audit by the Finnish accreditation agency, VTT, to maintain the E Mark accreditation. Unique to the E Mark accreditation is the
added inspection of the optical quality and clarity of the windscreen together with the mechanical integrity whereas, other inspection authorities only inspect and check for mechanical integrity.
National Auto Glass is accredited to the DOT (USA Department of Transport) certification from the American Standards Institute (ASI) of the United States Government as a manufacturer of Approved Laminated Safety Auto Glass, a mark that is also internationally recognised.
National Auto Glass is also accredited to TUV ISO 9001:2008 certification and undergoes an annual audit by TUV Rheinland to maintain this accreditation.