American Carbon Registry (ACR) Carbon Offset Projects
ACR is one of the oldest voluntary carbon offset registries in the United States, operating since 1996 and covering both voluntary and compliance-eligible project types.
979 projects tracked
Heartland Methane Abatement and Land Restoration Project 4
American Carbon Registry (ACR) · United States · Ghg Management
1.4M
issued tCO₂e
Heartland Methane Abatement and Land Restoration Project 5
American Carbon Registry (ACR) · United States · Ghg Management
Not yet issued
Heartland Methane Abatement and Land Restoration Project 6
American Carbon Registry (ACR) · United States · Ghg Management
Not yet issued
Heilwood Mine Methane Incineration Project
American Carbon Registry (ACR) · United States · Ghg Management
284.7K
issued tCO₂e
HFC Drawdown in Foam Systems: 002D
American Carbon Registry (ACR) · United States · Ghg Management
164.8K
issued tCO₂e
HFC Drawdown in Foam Systems: 002E
American Carbon Registry (ACR) · United States · Ghg Management
168.8K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA (HFO-1233zd(E)) 2014 and 2015
American Carbon Registry (ACR) · United States · Ghg Management
6.0K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA (HFO-1233zd(E)) 2015
American Carbon Registry (ACR) · United States · Ghg Management
28.8K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2016
American Carbon Registry (ACR) · Canada · Ghg Management
25.1K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2016b
American Carbon Registry (ACR) · United States · Ghg Management
55.6K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2017
American Carbon Registry (ACR) · Canada · Ghg Management
22.3K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2017b
American Carbon Registry (ACR) · United States · Ghg Management
121.8K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2018
American Carbon Registry (ACR) · Canada · Ghg Management
26.2K
issued tCO₂e
HFC Emissions Reduction in Spray Foam by Replacement of HFC-245fa Blowing Agent with Solstice LBA« (HFO-1233zd(E)) 2018b
American Carbon Registry (ACR) · United States · Ghg Management
130.3K
issued tCO₂e
Hiawatha Club Carbon Project
American Carbon Registry (ACR) · United States · Forest
51.4K
issued tCO₂e
High Island Dairy
American Carbon Registry (ACR) · United States · Ghg Management
146.4K
issued tCO₂e
HMMC1
American Carbon Registry (ACR) · United States · Ghg Management
91.7K
issued tCO₂e
Hodag Forest Project (HFP)
American Carbon Registry (ACR) · United States · Forest
189.7K
issued tCO₂e
Homestead Green Energy
American Carbon Registry (ACR) · United States · Ghg Management
96.4K
issued tCO₂e
Hood River County Tree Farm
American Carbon Registry (ACR) · United States · Forest
Not yet issued
HRC Oak Meadows IFM
American Carbon Registry (ACR) · United States · Forest
677.2K
issued tCO₂e
HT HFC Reclamation Project Champaign 2021
American Carbon Registry (ACR) · United States · Ghg Management
1.3M
issued tCO₂e
HT HFC Reclamation Project Champaign 2022
American Carbon Registry (ACR) · United States · Ghg Management
1.0M
issued tCO₂e
HT HFC Reclamation Project Champaign 2022-2
American Carbon Registry (ACR) · United States · Ghg Management
205.8K
issued tCO₂e
HT HFC Reclamation Project Champaign 2023
American Carbon Registry (ACR) · United States · Ghg Management
1.2M
issued tCO₂e
Registry data as of June 1, 2026