The Solar Census covers all segments of the solar industry in the U.S. In contrast, The Silicon Valley Toxics Coalition Annual Scorecard surveys and ranks solar PV manufacturers internationally, with the goal “to enhance transparency around environmental health, safety, and sustainability issues for communities, workers, and the environment”. The latest edition, released in late November 2014 names manufacturers and ranks them on environmental issues such as Extended Producer Responsibility, water use, use of conflict minerals, and use of toxic chemicals. It also includes a category for Worker Rights and Health and Safety policies, measured by “a formal commitment to protecting worker rights, health, and safety that goes beyond compliance with local laws and regulations; commitment to improving employee wages; signage informing illiterate workers about minimum wage provisions; coverage of workforce by collective bargaining; workday case rates; recordable incident rates; and adoption of OHSAS for 100% of facilities”. Top ranked companies in the workers rights category in 2014, are Trina (owned by Chinese interests), SunPower (headquartered in California), and REC (recently taken over from Norwegian control by a Chinese company).