Release-Based Cleanup Program
The Release-Based Cleanup Regulations (RBCRs) describe requirements to report, characterize, and cleanup releases to the environment. Release is defined as “any spilling, leaking, pumping, pouring, emitting, emptying, discharging, injecting, escaping, leaching, dumping or disposing into or onto the land and waters of the state…of oil or petroleum or chemical liquids or solids, liquid or gaseous products or hazardous waste…” The RBCRs also contain cleanup criteria for soil and groundwater and various compliance measures and variances that may be used to address releases. The RBCRs fulfill statutory requirement created by CGS 22a-134pp to 134xx.
- Cleanup Standards
- Compliance Measures and Variances - including Permits by Rule
- Public Notice Requirements
- Licensed Environmental Professional Role & Permitted Environmental Professional Role
- Requesting the Commissioner's Approval of Additional Polluting Substances (APS) and/or Alternative Criteria and Calculators
- Naturally Occurring Metals
- Significant Existing Releases/Immediate Actions - coming soon
- Tiers
- Fees
- Laboratory Quality Assurance and Quality Control
Questions about the RBCRs and the REACT portal may be submitted using this Question submittal tool or send an email to DEEP.RemediationDivision@ct.gov. Responses to submitted questions will be provided in updates to Frequently Asked Questions documents, Q&A annexes to training courses, or individually if appropriate.
Contractor lists
LEP Roster
PEP List associated with DEEP Permitted Spill Cleanup Contractors
Permitted Spill Cleanup Contractor List
Training and additional information
REACT and Release-Based Cleanup Regulation Training and Questions - Zoom links, presentations, recordings, and questions and answers
Remediation Standard Regulations Course (April 2023) - PowerPoint presentation developed for EPOC's RSR course:
Comprehensive Evaluation and Transformation of Connecticut’s Cleanup Laws – describes the RSR, EUR, and RBCR regulation development and adoption history
Content Last Updated April 21, 2026