(European) Eco-Management and Audit Scheme (EMAS): http://europa.eu.int/scadplus/leg/en/lvb/l28022.htm
International Organization for Standardization14000: http://www.iso.org/
Forest Stewardship Council: http://www.fsc.org
Sustainable Forestry Initiative: http://www.aboutsfi.org/core.asp
Programme for the Endorsement of Forest Certification: http://www.pefc.org/internet/html/
Consumers Union Guide to Eco-labels: http://www.eco-labels.org/
Robert Goodland, Ecolabeling: Opportunities for Progress toward Sustainability (Consumer’s Choice Council 2002), available at http://www.eldis.org/static/DOC12454.htm
UN World Tourism Organization, Voluntary Initiatives for Sustainable Tourism (2002), available at http://www.world-tourism.org (providing a comparative analysis of 104 tourism eco-labels, awards, and self-commitments).
UNEP, Ecolabels in the Tourism Industry (1998), described at http://www.uneptie.org/pc/tourism/library/ecolabels.htm
UNEP, The Trade and Environmental Effects of Eco-Labels: Assessment and Responses (2005), available at http://www.unep.ch/etb/publications/Ecolabelpap141005f.pdf