CAR U.S. Organic Waste Composting Protocol
CAR U.S. Organic Waste Composting Protocol is a waste management methodology used by 8 projects on Climate Action Reserve (CAR). Registry records show 957,645 tonnes issued and 90.7% of them retired.
Key figures
Projects
8
Countries
1
Credits issued
957,645 t
Credits retired
868,211 t
Retired share of issued
90.7%
Projects yet to issue
37.5%
Source: Berkeley Voluntary Registry Offsets Database, as used by the Methodology Lab · Data as of June 2026
ICVCM status
No ICVCM decision on this methodology yet.
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.
- Climate Action Reserve (CAR) 2024 to 2026: approved · 2027 to 2029: not approved
Issuance by vintage
| Vintage | Issued (tCO₂e) |
|---|---|
| 2024 | 58,745 |
| 2023 | 80,087 |
| 2022 | 64,392 |
| 2021 | 48,192 |
| 2020 | 53,502 |
| 2019 | 9,035 |
| 2018 | 33,724 |
| 2017 | 44,351 |
| 2016 | 38,243 |
| 2015 | 88,201 |
| 2014 | 96,601 |
| 2013 | 122,509 |
| 2012 | 87,807 |
| 2011 | 52,011 |
| 2010 | 45,940 |
| 2009 | 27,751 |
| 2008 | 6,554 |
Source: Berkeley Voluntary Registry Offsets Database · Data as of June 2026
Projects using CAR U.S. Organic Waste Composting Protocol
8 project pages in the CRBN.credit database, largest issuance first.
Cedar Grove - Maple Valley OWC Composting Project
Climate Action Reserve (CAR) · United States · Ghg Management
485.7K
issued tCO₂e
Cedar Grove Composting
Climate Action Reserve (CAR) · United States · Ghg Management
215.4K
issued tCO₂e
Lenz Composting
Climate Action Reserve (CAR) · United States · Ghg Management
136.8K
issued tCO₂e
Peninsula Composting
Climate Action Reserve (CAR) · United States · Ghg Management
70.3K
issued tCO₂e
Z-Best Food Waste Composting
Climate Action Reserve (CAR) · United States · Ghg Management
49.4K
issued tCO₂e
GEC Organics
Climate Action Reserve (CAR) · United States · Ghg Management
No issuance recorded
Organics By Gosh
Climate Action Reserve (CAR) · United States · Ghg Management
No issuance recorded
Sevier Solid Waste OWC Project
Climate Action Reserve (CAR) · United States · Ghg Management
No issuance recorded
Related methodologies
Same scope, with a more favourable ICVCM decision.
- CAR U.S. and Canada Biochar Protocol 9 projects · CCP-Approved
- ACM0001 Flaring or use of landfill gas 181 projects · Under assessment, no decision published
- AMS-III.G. Landfill methane recovery 6 projects · Under assessment, no decision published
- CAR U.S. Landfill Protocol 128 projects · Withdrawn from assessment
- VM0044 Methodology for Biochar Utilization in Soil and Non-Soil Applications 12 projects · Withdrawn from assessment
Questions about CAR U.S. Organic Waste Composting Protocol
How many projects use CAR U.S. Organic Waste Composting Protocol?
8 projects, in 1 country, as of June 2026.
Is CAR U.S. Organic Waste Composting Protocol approved by the ICVCM?
No ICVCM decision on this methodology yet.
How much of the credits issued under CAR U.S. Organic Waste Composting Protocol have been retired?
90.7%, or 868,211 of 957,645 tonnes.