USDA National Organic Program

http://www.ams.usda.gov/nop/indexIE.htm

California Department of Agriculture Organic Program

http://www.cdfa.ca.gov/is/i_&_c/organic.php

Washington State Department of Agriculture Organic Program

http://agr.wa.gov/FoodAnimal/Organic/default.htm

National Sustainable Agriculture Information Service

http://www.attra.org/

Atlantic Canadian Organic Regional Network (ACORN)

http://www.acornorganic.org/

The Ecological Farming Association

http://www.eco-farm.org/

Organic Trade Association

http://www.ota.com/index.php

Union of Concerned Scientists

http://www.ucsusa.org/

Organic Materials Review Institute

http://www.omri.org/index.php

Independent Organic Inspectors Association

http://www.ioia.net/

The Non-GMO Report

http://www.thenon-gmoreport.com/

Quebec Standards for Organic

http://www.cartvquebec.com/EN/about-cartv/who-we-are.asp