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ACROzone Depleting SubstancesOHIO, USGeneral Methodologyv2.1

A-Gas 2019-5

ACR-473 ↗

#118of 345 in United States#48of 147 in American Carbon Registry (ACR)

5.4/ 10
Integrity
5.0
Transparency
5.5
Claim Safety
6.0
Documentation
5.0

Audit Analysis

The Rock Wall ODS project (ACR-473) in Ohio received VVB verification from Dillon Consulting Limited with a verified ERR of 125,403 against a claimed 126,403 — a 99.2% match indicating minimal over-crediting. However, the extracted record lacks documented additionality testing, baseline methodology, and leakage treatment, creating meaningful evidence gaps despite the absence of material findings or corrective actions.

Red Flags

  • Additionality test type and VVB confirmation of additionality are not stated in the extracted verification report, leaving the regulatory/investment basis for the project undocumented in the available record
  • Baseline methodology and last reassessment date are not found in the extracted data, making it impossible to confirm the counterfactual (i.e., that the ODS would have been vented without the project)
  • Leakage deduction and justification are absent from the extracted record; for an ODS destruction project this should at minimum confirm that no ODS escaped the destruction process

Credit Vintages Exhausted

IssuedRetiredAvailable
2019
125,40300
Total125,40300

Risk Indicators

Additionality

Test not documented in extracted record

Permanence

ODS destruction — no carbon-stock reversal risk

Leakage

Deduction and justification not stated

Baseline

Methodology not found in extracted data

Safeguards

Not documented in available record

Double-claim

CCP and CORSIA status not stated

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Analysis ProvenanceScored2026-09-12General Methodology v2.1

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