ARB-OZONE ARB Compliance Offset Protocol: Destruction of U.S. Ozone Depleting Substances Banks
ARB-OZONE is a chemical processes methodology used by 107 projects on American Carbon Registry (ACR), Climate Action Reserve (CAR). Registry records show 9,519,666 tonnes issued and 79.7% of them retired.
Key figures
Projects
107
Countries
1
Credits issued
9,519,666 t
Credits retired
7,591,288 t
Retired share of issued
79.7%
Projects yet to issue
4.7%
Source: Berkeley Voluntary Registry Offsets Database, as used by the Methodology Lab · Data as of June 2026
ICVCM status
Methodology approved for the CCP label.
- CAR U.S. Ozone Depleting Substances Protocol - 1.0-2.0
The CCP label is applied to credits by the registry, issuance by issuance. An approved methodology means credits from projects using it can be eligible; it does not mean every credit carries the label.
CORSIA programme relevance
Whether the programmes this methodology is used on are approved by ICAO. Programme level only; unit eligibility depends on dates, authorisation and each programme's exclusions.
- American Carbon Registry (ACR) 2024 to 2026: approved · 2027 to 2029: approved
- Climate Action Reserve (CAR) 2024 to 2026: approved · 2027 to 2029: not approved
Issuance by vintage
| Vintage | Issued (tCO₂e) |
|---|---|
| 2025 | 97,359 |
| 2024 | 853,863 |
| 2023 | 45,265 |
| 2022 | 232,579 |
| 2021 | 310,504 |
| 2020 | 570,630 |
| 2019 | 293,757 |
| 2018 | 1,674,225 |
| 2017 | 1,741,715 |
| 2016 | 1,076,514 |
| 2015 | 883,719 |
| 2014 | 1,082,121 |
| 2013 | 657,415 |
Source: Berkeley Voluntary Registry Offsets Database · Data as of June 2026
Projects using ARB-OZONE
228 project pages in the CRBN.credit database, largest issuance first.
Tradewater ODS 18
American Carbon Registry (ACR) · United States · Ghg Management
96.1K
issued tCO₂e
A-Gas 2-2020
American Carbon Registry (ACR) · United States · Ghg Management
94.6K
issued tCO₂e
Tradewater ODS 42
American Carbon Registry (ACR) · United States · Ghg Management
93.9K
issued tCO₂e
Tradewater ODS 40
American Carbon Registry (ACR) · United States · Ghg Management
93.8K
issued tCO₂e
A-Gas 2018-9
Climate Action Reserve (CAR) · United States · Ghg Management
93.7K
issued tCO₂e
Wabashco Clean Sweep 9
American Carbon Registry (ACR) · United States · Ghg Management
93.3K
issued tCO₂e
A-GAS RemTec 2013-1
Climate Action Reserve (CAR) · United States · Ghg Management
93.1K
issued tCO₂e
Tradewater ODS 54
American Carbon Registry (ACR) · United States · Ghg Management
92.4K
issued tCO₂e
A-Gas 1-2024
American Carbon Registry (ACR) · United States · Ghg Management
92.3K
issued tCO₂e
Tradewater ODS 4
American Carbon Registry (ACR) · United States · Ghg Management
91.8K
issued tCO₂e
A-Gas 2019-7
American Carbon Registry (ACR) · United States · Ghg Management
91.0K
issued tCO₂e
Tradewater ODS 31
American Carbon Registry (ACR) · United States · Ghg Management
89.9K
issued tCO₂e
Tradewater ODS 44
American Carbon Registry (ACR) · United States · Ghg Management
89.7K
issued tCO₂e
Hudson Tech 2020-1
American Carbon Registry (ACR) · United States · Ghg Management
89.6K
issued tCO₂e
A-Gas 2019-4
American Carbon Registry (ACR) · United States · Ghg Management
88.3K
issued tCO₂e
Wabashco Clean Sweep 2
American Carbon Registry (ACR) · United States · Ghg Management
88.0K
issued tCO₂e
A-Gas 4-2020
Climate Action Reserve (CAR) · United States · Ghg Management
87.7K
issued tCO₂e
Tradewater ODS 49
American Carbon Registry (ACR) · United States · Ghg Management
87.0K
issued tCO₂e
EOS ACR 315
American Carbon Registry (ACR) · United States · Ghg Management
86.8K
issued tCO₂e
Tradewater ODS 19
American Carbon Registry (ACR) · United States · Ghg Management
85.3K
issued tCO₂e
Hudson Tech 2021-2
American Carbon Registry (ACR) · United States · Ghg Management
85.1K
issued tCO₂e
Tradewater ODS 26
American Carbon Registry (ACR) · United States · Ghg Management
84.8K
issued tCO₂e
Tradewater ODS 25
American Carbon Registry (ACR) · United States · Ghg Management
84.8K
issued tCO₂e
EOS ARB ODS 2013-7
American Carbon Registry (ACR) · United States · Ghg Management
84.4K
issued tCO₂e
A-Gas 1-2021
Climate Action Reserve (CAR) · United States · Ghg Management
84.3K
issued tCO₂e
Questions about ARB-OZONE
How many projects use ARB-OZONE?
107 projects, in 1 country, as of June 2026.
Is ARB-OZONE approved by the ICVCM?
Methodology approved for the CCP label.
How much of the credits issued under ARB-OZONE have been retired?
79.7%, or 7,591,288 of 9,519,666 tonnes.