EN 15343, “Plastics—Recycled Plastics—Traceability and Conformity Assessment of Recycling and Recycled Content,” is a European standard that outlines procedures for tracking recycled plastics and calculating their content in products. This certification ensures transparency and quality in the use of recycled materials. RETRAY has two aspects: as a process certification (RETRAY Process) and as a product certification (RETRAY product) and, therefore, the same company can obtain more than one certificate, depending on the number of facilities and products it wants to certify.