1. National Pollutant Discharge Elimination System permit regulation and effluent limitation guidelines and standards for concentrated animal feeding operations (CAFOs). Final rule.;Fed Regist,2003
2. Spatial and temporal changes in the U.S. hog, dairy, and fed-cattle sectors, 1975-2000.;Herath;Review of Agricultural Economics,2004
3. Managing manure: new Clean Water Act regulations create imperative for livestock producers.;Ribaudo;Amber Waves,2003
4. Regulating ammonia emissions from hog farms would raise costs.;Key;Amber Waves,2006
5. Environmental regulation and location of hog production.;Sullivan;Agricultural Outlook,2000