What does the DfE ‘Design for the Environment’ mark mean?

Design for the Environment                                            

It assures that the EPA’s Design for the Environment (DfE) scientific review team has screened each ingredient for potential human health and environmental effects, and contains ingredients that pose the least concern among chemicals in their class. The DfE mark is an easy way to know you are choosing a product that is as safe as possible for people and the environment.