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Regionalization Evaluation Services Information

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Regionalization Evaluation Services Information

The Regionalization Evaluation Services (RES) evaluates the animal health status of foreign regions (zones) and the risk of disease introduction via commodities for import into the United States. A region is a geographical land area identifiable by geological, political, or surveyed land boundaries that contains an animal subpopulation with a distinct animal health status. RES also assists in the coordination of data to support regionalization of the United States for export purposes.

RES follows a science- and risk-based approach that is consistent with APHIS obligations under international trade agreements. When evaluating the animal health status of a foreign region, RES Staff:

  • Analyzes information submitted by foreign governments in support of regionalization requests;
  • Recommends and conducts site visits as appropriate to the evaluation;
  • Coordinates the risk assessment process;
  • Identifies appropriate risk mitigation measures; and
  • Coordinates rulemaking actions relevant to regionalization decisions for Veterinary Services.

RES risk assessments for regions requesting APHIS recognition of disease freedom or a commodity-based evaluation (if the region cannot be considered free of the disease) typically follow an 8-factor framework defined in title 9, Code of Federal Regulations, part 92.2(b). These factors are:

  • Scope of the evaluation being requested;
  • Veterinary control and oversight;
  • Disease history and vaccination practices;
  • Livestock demographics and traceability;
  • Epidemiological separation from potential sources of infection;
  • Diagnostic laboratory capabilities;
  • Surveillance practices; and
  • Emergency preparedness and response.

However, a region may be considered historically free of a disease if it has not occurred in domestic livestock in the region for at least 25 years (if ever) or in wildlife for at least 10 years. RES conducts historically free evaluations according to a 6-factor format defined in title 9, Code of Federal Regulations, part 92.2(c). These factors are:

  • Scope of the evaluation being requested;
  • Veterinary control and oversight;
  • Disease history and vaccination practices;
  • Disease notification;
  • Disease detection; and
  • Barriers to disease introduction.

The RES process for conducting regionalization evaluations is further described in this document:

A list of regions that have requested APHIS evaluation of their animal health status is available here:

In addition, RES conducts reviews of the animal health statuses of regions APHIS has previously recognized as a condition for maintaining those statuses using a rigorous, science-based approach. This process increases assurances that our import procedures continue to appropriately mitigate the risk of foreign animal diseases over time by maintaining a high level of vigilance and, if necessary, adjusting safeguards when new information or situations arise.

Submit an Evaluation Request

English translations of all supporting materials must be submitted. Submission of the information in electronic format can facilitate the review. *All documents submitted will be made available to the public, so please do not submit confidential information unless it is clearly identified as confidential.

If you wish to submit a request for a standard regionalization evaluation (not qualified for consideration as historically-free), please follow the format described in this document:

If you wish to submit a request for evaluation as a historically-free region, please follow this format:

Submit an Evaluation Request for BSE Status Recognition

For information required for countries requesting recognition please refer to OIE Terrestrial Animal Health Code, Articles 1.6.5

For countries evaluated by APHIS, please complete the OIE BSE Reconfirmation form

Contact Us

If you have any questions, or require further information related to the regionalization evaluation process or submitting an evaluation request, please contact the Regionalization Evaluation Services at 301-851-3300.

The document describing the RES evaluation process and the templates for requesting recognition of the animal health status of a region are presented in Portable Document Format (PDF). Viewing these files requires a PDF file reader, such as the Adobe Acrobat Reader.

*Please note that the APHIS mail server is no longer accepting executable file attachments, such as .exe, .pif, .cmd, .scr, .com, .bat, .zip, .vbs, .dll, .chm, .js, .jse, .vb, .vbe.


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