Subpart PP – Suppliers of Carbon Dioxide

This page provides resources for subpart PP reporters, including implementation information as well as supporting documents for relevant rulemakings. Visit the Capture, Supply, and Underground Injection of Carbon Dioxide page for more information about this sector.

Summary

Suppliers of carbon dioxide (CO₂) consist of the following: 

• Facilities with production process units that capture and supply CO₂ for commercial applications that capture and maintain custody of a CO₂ stream to sequester or otherwise inject it underground. 

• Facilities with CO₂ production wells. 

• Importers of bulk CO₂, if total combined imports of CO₂ and other greenhouse gases (GHGs) exceed 25,000 metric tons of CO₂ equivalent per year (tonnes CO₂e/year). 

• Exporters of bulk CO₂, if total combined exports of CO₂ and other GHGs exceed 25,000 tonnes CO₂e/year. 

This source category does not include entities that store CO₂ through geologic sequestration (GS) or above ground storage; use CO₂ in enhanced oil and gas recovery; transport or distribute CO₂; purify, compress, or process CO₂; or import or export CO₂ in equipment. 

Reporter Resources

• Subpart PP Information Sheet
• Subpart PP Monitoring Checklist
• Training Presentations

Subpart PP Regulatory History