The criteria and requirements for the award of the natureplus-Seal of Quality are laid down in the Issuance Guidelines.
Every building product awarded the Quality Seal must fulfil the basic criteria, the product group criteria and (if applicable) those of its product category.
| RL1300 Mineral-Based Wall and Floor Coverings | |
| RL1301 Keramische Wand- und Bodenbeläge | |
| RL1302 Natursteinbeläge |