Due to a lapse in federal funding, this USDA website will not be actively updated.
Once funding has been reestablished, online operations will continue.
Got organic wastes? Learn about processing manures, leaves, yard trimmings and discarded food into soil enriching "black gold."Environmental Protection Agency.
Covers information about laws and regulations, environmental benefits, composting science, and relevant publications. Web pages on Composting at Home, Feeding the Soil and Composting, and Types of Composting and Understanding the Process.
Cornell Waste Management Institute.
Links to composting information including fact sheets, articles, maps, regulatory information, reports, software, compost use guidelines and other online sites.
University of Arkansas. Cooperative Extension Service.
Provides basic information about composting and further details about air and moisture, carbon:nitrogen ratio, benefits of composting, compost bins, building a pile, determining when compost is ready to use, worms and additional sources of information.
Klickitat County Solid Waste.
Created for citizens of Klickitat County Washington, this site has great materials for everyone including a Compost Mix Calculator and several short fact sheets with detailed plans for different types of compost bins.
California Integrated Waste Management Board.
Provides events listings, publications and external links about compost, mulch, biosolids, sustainable commercial landscaping, home gardening, food scrap management and biomass conversion technologies in relation to waste utilization. The information is targeted to California citizens but of use to all.
National Center for Appropriate Technology. ATTRA - National Sustainable Agriculture Information Service.
Publications and other resources on how to assess, improve and maintain soil health for both croplands and pastures including the Composting-The Basics which offers information on the basic of composting and vermicomposting as well as more in depth information for small-scale farms.