US Regulatory Programs & the International Standard for Quantifying Geologic Storage through CO2-EOR: A Side-by-Side Comparison

This report compares the US EPA’s Subpart RR and the ISO 27916 standard with respect to quantifying the CO₂ geologic storage that occurs during CO₂‑enhanced oil recovery. It outlines similarities and differences in requirements for monitoring, reporting, verification, measuring leakage, and ensuring well integrity. The full report helps stakeholders understand how US regulations and international standards align or diverge.