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ServiceRegulatory Support


Registration of pesticides is a multi-faceted and complex process. We offer regulatory support and use GIS analyses to assist clients with many aspects of the registration process, including implementing refinements needed for higher-tier registration guidelines.

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Our team can help you with:

  • Refinements of percent crop areas (PCA): Although EPA has a set of standard PCAs for use at the national or regional scale, they may not provide sufficient detail at the watershed level or potential pesticide use area. GIS is used to develop a more realistic PCA based on specific product uses while incorporating the latest crop information. The resulting PCA can then be used in higher-tier modeling assessments.
  • Label assessments: We evaluate existing or new use labels based on use patterns, crops and buffer distances to determine which use in areas may pose a potential problem.
  • Site-specific modeling: GIS is used to determine appropriate candidate areas for risk assessment. We also determine which soils and crops should be accounted for in the modeling efforts.
  • Europe FOCUS Tier 2b and 3b groundwater modeling using metaPEARL, the Index Method, or geoPEARL: This work is conducted within the framework of the EU Council Directive 91/414/EEC and incorporates the latest FOCUS workgroup recommendations and models.
  • Soil crosswalks: We determine if test site soils exist elsewhere in the world. Soil crosswalks are conducted in support of EPA, PMRA, NAFTA and OECD guideline for use of soils in terrestrial field studies. Being able to demonstrate that similar soils exist has the potential to limit the number of new field studies that need to be conducted as part of pesticide registration.
  • Risk Assessments for USEPA: These are conducted to determine co-occurrence of stressors and receptor, or conduct a cumulative risk assessment for several chemicals.
  • Endangered Species proximity analysis and pesticide use site assessments for USEPA: Our team will gather best available information on endangered species locations, develop up-to-date pesticide use site datasets based on label information and determine if co-occurrence takes place. Based on this information we can determine suitable mitigation strategies.
  • Desktop applications: These serve as screening-level tools for environmental risk assessments. The models and underlying tabular/spatial data developed by our team are used by our clients to explore regulatory needs.
  • Web-based tools in support of stewardship programs: Dynamic web-based applications can help people better understand where water quality issues may occur or where limits have been placed on the use of pesticides. (The ARP website┬áprovides one example). Waterborne can develop and host these specialty maps for you as part of our web hosting services.