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.
EOS ACR 357
American Carbon Registry (ACR) · United States · Ghg Management
84.1K
issued tCO₂e
Tradewater ODS 22
American Carbon Registry (ACR) · United States · Ghg Management
83.6K
issued tCO₂e
Tradewater ODS 24
American Carbon Registry (ACR) · United States · Ghg Management
83.2K
issued tCO₂e
Hudson Tech 2024-1
American Carbon Registry (ACR) · United States · Ghg Management
83.2K
issued tCO₂e
Tradewater ODS 20
American Carbon Registry (ACR) · United States · Ghg Management
83.0K
issued tCO₂e
A-Gas 3-2020
American Carbon Registry (ACR) · United States · Ghg Management
81.0K
issued tCO₂e
Tradewater ODS 35
American Carbon Registry (ACR) · United States · Ghg Management
80.3K
issued tCO₂e
A-Gas 3-2023B
American Carbon Registry (ACR) · United States · Ghg Management
79.6K
issued tCO₂e
Tradewater ODS 29
American Carbon Registry (ACR) · United States · Ghg Management
79.4K
issued tCO₂e
Tradewater ODS 53B
American Carbon Registry (ACR) · United States · Ghg Management
78.6K
issued tCO₂e
A-Gas 5-2020
Climate Action Reserve (CAR) · United States · Ghg Management
78.2K
issued tCO₂e
Hudson Tech 2022-1
American Carbon Registry (ACR) · United States · Ghg Management
76.7K
issued tCO₂e
Tradewater ODS 45
American Carbon Registry (ACR) · United States · Ghg Management
75.6K
issued tCO₂e
Hudson Tech 2019-4
Climate Action Reserve (CAR) · United States · Ghg Management
73.5K
issued tCO₂e
Tradewater ODS 43
American Carbon Registry (ACR) · United States · Ghg Management
73.0K
issued tCO₂e
ClimeCo ODS Destruction 20
Climate Action Reserve (CAR) · United States · Ghg Management
72.6K
issued tCO₂e
Tradewater ODS 41
American Carbon Registry (ACR) · United States · Ghg Management
72.1K
issued tCO₂e
Tradewater ODS 32
American Carbon Registry (ACR) · United States · Ghg Management
71.9K
issued tCO₂e
2014-P4
American Carbon Registry (ACR) · United States · Ghg Management
71.8K
issued tCO₂e
ClimeCo ODS Destruction 25
Climate Action Reserve (CAR) · United States · Ghg Management
71.6K
issued tCO₂e
Hudson Tech 2023-1
American Carbon Registry (ACR) · United States · Ghg Management
71.4K
issued tCO₂e
A-Gas 1-2023
Climate Action Reserve (CAR) · United States · Ghg Management
70.8K
issued tCO₂e
A-Gas 3-2021
Climate Action Reserve (CAR) · United States · Ghg Management
70.7K
issued tCO₂e
Hudson Tech 2019-6
American Carbon Registry (ACR) · United States · Ghg Management
70.4K
issued tCO₂e
EOS ACR 352
American Carbon Registry (ACR) · United States · Ghg Management
68.6K
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.