Sustainable Facilities Tool is about efficient, healthy buildings and environmentally-responsible purchasing. Their Green Procurement Compilation is a helpful guide to green purchasing choices. https://sftool.gov/greenprocurement.
Energy Star is a government program offering energy-efficient solutions. http://www.energystar.gov/
Energy Star certified products. http://www.energystar.gov/index.cfm?c=products.pr_find_es_products.
EPEAT is a system to help purchasers compare and select desktop computers, notebooks and monitors based on their environmental attributes. EPEAT also provides a consistent set of performance criteria for the design of products. http://www.epeat.net/
Green Seal is an independent non-profit organization dedicated to safeguarding the environment and changing the marketplace by promoting the manufacture, purchase, and use of environmentally responsible products and services. http://www.greenseal.org/
Forest Stewardship Council (FSC) is a non-profit organization devoted to encouraging the responsible management of the world's forests.http://www.fscus.org/
Greenguard is an independent, third-party testing program for low-emitting products and materials. http://www.greenguard.org/
LEED - Leadership in Energy and Environmental Design is a green building rating system, developed by the US green Building Council, providing a suite of standards for environmentally sustainable building construction. https://www.usgbc.org/leed
Environmental Choice - Home of ECOLOGO. EcoLogoM is North America's most widely recognized and respected multi-attribute environmental certification mark. http://www.ecologo.org/en/