CERS NextGen EDT
Introduction
The Electronic Data Transfer (EDT) service leverages Representational State Transfer (REST) architecture for web services coupled with Extensible Markup Language (XML) and JavaScript Object Notation (JSON) to exchange data with Unified Program Agencies (UPAs). EDT is a highly complex data exchange protocol that provides a uniform interface to support the processes associated with CERS-UPA electronic data exchange. Listed below are the endpoints currently under development for CERS EDT Services. The endpoints are grouped into numbered “tiers” representing increasing business process complexity and security considerations.
CERS NextGen
This guide represents the scope of the updated EDT services for the CERS NextGen product. We intend to keep all of Tier 1 through Tier 3 scope with 3 additional endpoints. Tiers 4, 5 and 6 will not be supported by CERS NextGen. While there will be some changes to the design from CERS3, a key objective was to minimize these changes in each endpoint. Additionally, we now provide both an XML and a JSON interface for each endpoint.
| Tier # | End Point | Approach |
|---|---|---|
| 1 | Regulator Authentication Test (RAT) | Update |
| 1 | Violation Library Query (VLQ) | Update |
| 1 | Chemical Library Query (CLQ) | Update |
| 1 | Data Dictionary Query (DDQ) | Remove |
| 2 | Regulator Facility Submittal Query (RFSQ) | Update |
| 2 | Regulator Organization Query (RBQ) | Update |
| 2 | Regulator Facility Submittal Document Query (RFSDQ) | Update |
| 2 | Regulator CME Query (RCMEQ) | Update |
| 2 | Regulator Facility Query (RFQ) | Update |
| 2 | Regulator Action Item Query (RAIQ) | Remove |
| 2 | Regulator Facility Transfer Query (RFTQ) | Remove |
| 2 | Regulator Facility - Business RTC Query (RFRQ) | New |
| 2 | Regulator Facility Profile - UST Operations Query (RFUQ) | New |
| 2 | Regulator UST Tank Profile Query (RUPQ) | New |
| 3 | Regulator CME Submit (RCMESS) | Update |
| 4 | Regulator Facility Submittal Action Notification (RFSAN) | Remove |
| 5 | Regulator Facility Metadata Submit (RFM) | Update |
| 5 | Regulator Facility Metadata Create (RFC) | Remove |
| 6 | Regulator Facility Submittal Submit (RFS) | Remove |
The California Environmental Protection Agency (CalEPA) plans to release CERS NextGen to production in the Fall of 2026. CalEPA will also build and make available an environment to allow CUPAs to test updates to their EDT code before the production release date. Please use this guide to help you develop these updates.
Requesting access
EDT is only available to UPAs. UPAs will need to request EDT access from CalEPA. Instructions for how to request access will be provided at a later date once an EDT testing environment is available.
Feedback
As we develop and deploy this new software solution, we encourage feedback. This will help us deliver the highest quality solution for all our partners. If you have feedback or require technical assistance, please send an email with ‘EDT NextGen’ in the subject line to: cers@calepa.ca.gov.
Guide Usage
Each end-point section provides:
- A brief summary of the endpoint.
- The parameters required to make endpoint calls.
Sample XML and JSON
Samples of XML and JSON files for each endpoint will be provided and published as they become available. For technical assistance please contact CERS Technical Help cers@calepa.ca.gov.
Authorization Header
All service calls must include an authentication HTTP header using a CERS account with rights to the CERS EDT Service. The header format will be released in a future version of this documentation.