Fuente: WIPO "circular economy" The present invention relates to an entirely biodegradable or recyclable license plate manufactured in its entirety with elements made from biodegradable and/or recyclable materials comprising: a substrate (2) constituting a lower supporting base part made of biodegradable material, preferably obtained from agricultural waste such as rice hull, olive pit, or almond shell, or of 100% recyclable aluminum, further incorporating on its upper surface an anti-adherent layer (7); a reflective intermediate sheet (3) with distinctive logos (4) and characters (5), and a protective transparent upper sheet (6), occasionally with said characters (5) in mirrored fashion consisting of plastic sheet of a natural cellulose-derived polymer; and an adhesive bonding the substrate (2), the intermediate sheet (3), and the water-based upper sheet (6) to one another that is completely environmentally-friendly.