What are the requirements for manure use?

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Response times may be slow due to the wildfires affecting Santa Cruz County and Covid-19. Organic compliance deadlines and inspections will be delayed for businesses affected by these crises. Read the latest updates on the Northern California wildfires, and visit our Covid-19 webpage to find pandemic-specific information »

Los tiempos de respuesta serán lentos debido a los incendios forestales afectando al condado de Santa Cruz y COVID-19. Los plazos de cumplimiento orgánico y las inspecciones se retrasarán para los negocios afectados por estas crisis.  Lea las últimas actualizaciones sobre los incendios forestales del norte de California y visite nuestra página web de Covid-19 para encontrar información específica a la pandemia »

Under the NOP there are specific requirements for the use of raw manure.

Raw animal manure must be composted unless it is:

  • Applied to land used for a crop not intended for human consumption.
  • Incorporated into the soil no less than 120 days prior to the harvest of a product whose edible portion has direct contact with the soil surface or soil particles (such as lettuce).
  • Incorporated into the soil no less than 90 days prior to the harvest of a product whose edible portion does not have direct contact with the soil surface or soil particles.

Heat-treated manures or processed manures may be used without these restrictions as they are treated to prevent the contamination of organic crops. Remember to seek approval of new materials, including manure-based products, prior to using.