There are four types of environmental label:
Ecolabel Type I: Regulated by standard ISO 14024. Products that carry this comply with certain predefined environmental requirements, agreed upon by recognized entities and available to the public.
Ecolabel Type II: These refer to environmental self-declarations. The manufacturer makes its own environmental declarations, in the form of symbols or graphs, based on criteria predefined by the organization itself.
Label type III: These are regulated under standard ISO 14025 and refer to environmental product declarations (EPDs). It is a technical report that sums up all the most significant data of the environmental behavior of a product.
Label sub-type I: These are not governed by any European standard and focus on a product's compliance with a specific environmental characteristic.