Registries: Welcome to CSA’s GHG Registries Web Site


Welcome to CSA’s GHG Registries Web Site – Helping you manage, measure, and report your GHG emissions, reductions, and removals.

GHG CleanStart™ Registry

Helping you to showcase carbon neutral commitments and actions

Utilizing the ISO 14064 accounting and reporting standards, allows organizations to:


GHG CleanProjects™ Registry

Quantifying your emission reducing projects.

Utilizing the ISO 14064-2 & 3 Standards,


Challenge Registry

Showcases organizations’ actions which contribute towards the reduction of GHG emissions and allows for the comparison and publishing of best practices.

Reductions Registry

Provides a portal for organizations to showcase GHG reduction projects using other standards and programs than ISO 14064-2. Third-party verification is required for serialization of Registered Emission Reductions (RER).


Information about or to purchase any of the ISO 14064 Standards.

Information about CSA Standards Greenhouse Gas Management training courses.

CSA Standards Climate Change

CleanStart™ and CleanProjects™ are trademarks of Canadian Standards Association