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  1. Home
  2. Facility Registry Service (FRS)
  3. FRS Description

FRS Physical Data Model

Researcher? Need to understand the model structure and relationships beyond what is provided on the EPA website? Please contact us at the FRS Request Form and request model clarification and your goals. This will help determine what information to share.

FRS Physical Model

The FRS model is a practical application of applying master data management principles to take in multiple sources of information, (e.g., program systems) and represent the relationships of these reported physical sites.

Note - the underlying EPA legacy data model is being reviewed for simplification, duplication currently exists and researching what is the authoritative source requires analysis.

For the most up to date technical FRS data model information that does not require asking for access, review the FRS Submit API Swagger page. It informs how the production FRS data is structured for intergovernmental data transfers.

Facility Registry Service (FRS)

  • FRS Home
  • FRS Description
    • FRS Data Sources
      • FRS Data Resource Updates Dashboard
    • FRS Physical Data Model
  • Search for FRS data
    • FRS Query
      • FRS Query Form's User Guide
    • Enforcement and Compliance History Online
    • Data Download Options
    • Geospatial Data Download Options
    • FRS Query Builder
    • FRS API
    • Intergovernmental FRS API
    • Envirofacts Multisystem Search
      • Envirofacts Data Service API
  • Facility Linkage Application (FLA)
    • Data Steward Resources
      • FLA Best Practices
      • FLA Training
Contact Us About FRS
Contact Us About FRS to ask a question, provide feedback, or report a problem.
Last updated on August 22, 2025
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