UL 2809 Environmental Claim Validation Procedure (ECVP) for Recycled Content is used to evaluate and validate defined source material content claims. Segregated material flows or mass balance accounting may be used when evaluating any defined source of material. The most recent update of the procedure includes assessments of the social impacts of collecting pre-consumer and post-consumer recycled materials on local economies, including criteria for ocean-bound and ocean sourced plastics.