The System of Registries (SoR) is a resource for environmental system developers and enterprise architects. it also provides environmental program managers and users of environmental information with automated services to enable better understanding of environmental terminology and data used by the Agency.

Data standards are an integral part of these services. Information about data standards may be accessed on the separate Data Standards Web Site.

Registry of EPA Applications, Models and Data Warehouses

• Information Systems
• Environmental Models

Environmental Dataset Gateway

• Datasets
• Mapping Tools
• Live Maps

Reusable Component Services

• Web Services, Widgets, APIs
• Software Tools, Mobile Apps
• Dataflows, Schema

Facility Registry Services

• Facilities
• Locational Information

Substance Registry Services

• Chemicals
• Biological Organisms

Terminology Services

• Terms, Acronyms and Definitions
• Glossaries
• Taxonomies

Data Element Registry Service

• Data Dictionaries
• Code Sets
• Standard Data Elements

Tribal Identification Services

• Federally-recognized Tribe Names and Identifiers

Laws and Regulations Services
*Note: Under development and coming soon

• Environmental Laws, Their Regulations, and Programs