Concentrated Animal Feeding Operation General Permit

Permiso de Operación de Alimentación de Animales Confinados

Para obtener más información, comuníquese con Chelsea Morris al 360-407-6563.

We issue the Concentrated Animal Feeding Operation (CAFO) General Permit to operations that confine livestock for long periods of time in pens or barns and discharge pollution to surface or groundwater.

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Permit reissuance

The current permit expires on March 2, 2022. The permit reissuance process includes informal listening sessions and a formal public comment period on the draft permit which will include public workshops and hearings. We plan to make a permit reissuance decision in early 2022.

Changes to the permit that are being considered include:

  • Requirements for timing of land application
  • Requirements for assessing existing liquid storage structures
  • Phosphorus application benchmarks to protect surface waters
  • Other issues identified through informal listening sessions


Early 2021: Informal Listening Sessions
Summer 2021: Formal Public Comment period on the draft permit
February 2022: Decision on reissuance
March 2022: Current permit expires

Listening Sessions Schedule

Evening Listening Session Webinar
Tuesday, Jan. 26, 2021 at 5 p.m.
Join the webinar online

Morning Listening Session Webinar
Friday, Jan. 29, 2021 at 9:30 am
Join the webinar online

Interpretation services in Spanish are available. Servicio de interpretación al español disponible.

Who needs to apply

You must get this permit if ​you:

  • Confine livestock in pens or barns for 45 days or more during the year.
  • Discharge from your operation.

Current permit & related documents

Applications & forms