EPA-Approved for Periodic Screening: Qube’s Continuous Monitoring Delivers Real-Time Emissions Compliance

Executive Summary

In March 2025, Qube Technologies secured a significant regulatory milestone: approval from the U.S. Environmental Protection Agency (EPA) as an Alternative Test Method for Periodic Screening under the New Source Performance Standards (NSPS) Subpart OOOOb and Emissions Guidelines (EG) Subpart OOOOc for methane emissions. This approval also extends to Subpart OOOOa, enabling operators to deploy Qube's continuous monitoring system either as a substitute for or in conjunction with traditional optical gas imaging (OGI) and/or utilizing a gas analyzer in compliance with EPA's Method 21 program for methane leak detection.

What This Means for Operators

Qube’s EPA-approved continuous monitoring solution helps operators meet compliance requirements while streamlining their LDAR programs, reducing costs, and improving operational visibility.

This white paper explores:

• The regulatory backdrop

• How Qube meets EPA thresholds

• A case study demonstrating how periodic screening can reduce site inspections

This report is designed for oil and gas operators aiming to align emissions performance with their scalable business goals.