CAFO's Final Rule for 
Concentrated Animal Feeding Operations
December 15, 2003 In 1999, the U.S. Environmental Protection Agency (EPA) and the U.S. Department of Agriculture decided to adopt a Unified National Strategy aimed at addressing water quality problems associated with animal feeding operations (AFOs). The EPA announced the CAFO Final Rule on 15 December 2002. At the time of its announcement, the Final Rule was expected to affect 15,500 livestock and poultry operations throughout the U.S. The Final Rule updates regulations that are more than 25 years old and will result in a more effective, nationally consistent set of regulations to protect water resources.

Additional Links:

NEW! NEW! NEW! 
Proposed revisions to CAFO NPDES rules (June 23, 2006) 
The EPA is proposing to revise some CAFO NPDES rules in response to the
order issued by the Second Circuit Court of Appeals in Waterkeeper
Alliance et al. v. EPA, 399 F.3d 486 (2nd Cir. 2005).  For additional
details, go to http://cfpub.epa.gov/npdes/afo/aforule.cfm

Overview of the Final CAFO regulations:
Power point file provided by EPA

Definition of a CAFO as defined in the CAFO Final Rule: http://www.epa.gov/npdes/pubs/cafo_brochure_regulated.pdf