Concentrated Animal Feeding Operations(CAFOs)
Wastes from confined livestock can be a source of pollutants when they are discharged to state waters. Pollutants most often reach state water as a result of precipitation (rainfall or snow melt). Pollution of surface and ground water is prohibited, and permits are required for discharges containing pollutants.

Source: NCSU/Biological and Agricultural
Engineering
On September 25, 2008, the Department reissued the CAFO General Permit for the State of Montana, excluding Indian Reservations. This permit will go into effect on November 1 and incorporates the latest state and federal requirements for CAFOs. Facilities which are covered under the existing general permit will automatically be covered under the new permit, but are required to submit a Nutrient Management Plan (NMP) by February 1, 2009. The permit contains a number of new requirements that are explained below. The Department will be notifying existing permittees of these requirements by mail.
- November 1, 2008 General Permit for Concentrated Animal Feeding Operations
- Permit Fee Schedule for Applications and Annual Fees
- Application Package for CAFO General Permit MTG01000
- Rules and Regulations
- MCA Title 75, Chapter 5 - Water Quality
- ARM 17.30.1304 Definitions
- ARM 17.30.1330 CAFO
- Montana Technical Standards for Concentrated Animal Feeding Operations - DEQ Circular 9
- National Pollutant Discharge Elimination System Regulations (NPDES) for Concentrated Animal Feeding Operations, Final Rule
- Federal Regulations, 40 CFR, Part 122- EPA Administered Permit Programs: The national Pollutant Discharge Elimination System
- Federal Regulations, 40 CFR, Part 412-Concentrated Animal Feeding Operations (CAFO) Point Source Category
- Other Information
- August 15, 2000 General Permit for Concentrated Animal Feeding Operations
