"The farm bill is an omnibus, multi-year law that governs an array of agricultural and food programs. Titles in the most recent farm bill encompassed farm commodity price and income supports, agricultural conservation, farm credit, trade, research, rural development, bioenergy, foreign food aid, and domestic nutrition assistance. Because it is renewed about every five years, the farm bill provides a predictable opportunity for policymakers to comprehensively and periodically address agricultural and food issues. The most recent farm bill--the Agricultural Act of 2014 (P.L. 113-79; 2014 farm bill)--was enacted into law in February 2014 and expires in 2018. It succeeded the Food, Conservation, and Energy Act of 2008. Provisions in the 2014 farm bill reshaped the structure of farm commodity support, expanded crop insurance coverage, consolidated conservation programs, reauthorized and revised nutrition assistance, and extended authority to appropriate funds for many U.S. Department of Agriculture (USDA) discretionary programs through FY2018."
CRS Report for Congress, RS22131
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html