The most trusted carbon credit registry

High-integrity carbon crediting at speed and scale

The Climate Action Reserve develops and operates rigorous, market-based programs that drive climate action — serving project developers, verifiers, buyers, and regulators across global carbon markets.

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29Active protocols

8Countries & regions

315+Protocol documents

3Compliance programs

Explore carbon crediting protocols

Every protocol, organized by the systems they protect — searchable and filterable in one place.

Forested river canyon — a natural climate solutions landscape

Natural Climate Solutions Forests, grasslands, soil, biochar, and agricultural methods that store carbon in living systems. View protocols →

Cattle grazing in pasture — a livestock methane project setting

Waste Handling & Methane Destruction Landfill, livestock, and organic-waste protocols that capture and destroy potent methane emissions. View protocols →

Aerial view of an industrial-scale emissions-reduction facility

Industrial Processes & Gases Ozone-depleting substances, nitric and adipic acid, cement, and boiler-efficiency protocols. View protocols →

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Clear entry points for every stakeholder in the carbon market.

Project Developers Register a project and earn credits Verifiers Access protocols and verification tools Buyers Find high-integrity carbon credits Regulators Review compliance program standards

Recently referenced protocols

A sample of the Reserve's adopted crediting methodologies.

All 29 protocols →

Waste Handling & Methane Destruction Argentina Landfill Protocol Argentina · 9 documents Waste Handling & Methane Destruction Argentina Livestock Protocol Argentina · 8 documents Natural Climate Solutions Canada Grassland Protocol Canada · 14 documents Industrial Processes & Gases China Adipic Acid Production Protocol China · 7 documents Waste Handling & Methane Destruction Dominican Republic Livestock Protocol Dominican Republic · 8 documents Natural Climate Solutions Guatemala Forest Protocol Guatemala · 10 documents