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Guide to Prohibited, Domestic Regulated and Quarantine Soils

The Cornell Soil Health Lab has three categories of regulated soils: Prohibited, Domestic Regulated and Quarantined.
All samples being shipped to the Cornell Lab, regardless of the category, need to be double bagged prior to packaging and shipping. Packing material such as crumpled paper or bubble wrap must be placed in the box with the samples to minimize sample movement and spillage during shipping.

Prohibited Soils:

There are certain counties in the US where soil should neither be packaged nor shipped. Soil received from these counties will be destroyed in our lab without processing. For a complete list of prohibited counties please visit the ‘Resources’ tab on our website.

Current List of Prohibited Counties:

California: Alameda, Contra Costa, Humboldt, Lake, Los Angeles, Marin, Mendocino, Monterey, Napa, Orange, Riverside, San Diego, San Francisco, San Mateo, Santa Claro, Santa Cruz, Solano, Sonoma, Trinity

Florida: Broward, Miami-Dade

Idaho: Bingham, Bonneville

Oregon: Curry

Texas: Cameron, Hidalgo, Webb, Willacy, Zapata

Domestic Regulated Soils:

We accept soils from regulated areas throughout the United States. As with all samples, please be sure to double bag and use packing material to minimize sample movement during shipping. Special lab procedures (using Quarantine protocol) are required for regulated soils.

Entire state:

  • Alabama
  • Arkansas
  • California
  • Georgia
  • Florida
  • Louisiana
  • Mississippi
  • North Carolina
  • Oklahoma
  • South Carolina
  • Tennessee
  • Texas

Domestic Regulated Counties:

  • New Mexico: Dona Ana, San Juan
  • New York: Cayuga, Livingston, Nassau, Orleans, Seneca, Steuben, Suffolk, Wayne
  • Virginia: Virginia Beach, Chesapeake, Suffolk, Isle of Wight, Hampton, York, James City

Quarantined Soils:

Quarantined soils are from any area outside the contiguous United States. Special shipping and lab procedures are required for quarantined soils. You must contact the Cornell Soil Health Lab prior to shipping quarantined soils: Quarantined samples are subject to an additional 15% surcharge.

Root Health Bio-Assay Restrictions:

Due to United States Department of Agriculture, Animal and Plant Health Inspection Service regulations the Cornell Soil Health Laboratory cannot perform the Bean Root Bio-Assay on Quarantined soil (soil originating from outside the continental United States) or from Domestic Regulated States and Counties:

Printable list: CSHL Guide to Regulated Soils 10-3-2017

Cornell Soil Health Laboratory Map of Domestic Regulated States

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