EPA NSPS OOOOb (Quad Ob) Compliance Calendar Software
EPA's NSPS Subpart OOOOb (40 CFR 60 Subpart OOOOb), finalized in March 2024, represents the most comprehensive federal methane regulation for the oil and natural gas sector. Building on NSPS OOOO and OOOOa, the rule introduces a super-emitter response program, requires zero-emission pneumatic controllers at most locations, increases fugitive emissions survey frequencies, strengthens leak repair requirements, and adds associated gas capture provisions to reduce routine flaring.
Our NSPS OOOOb Compliance Calendar Software and mobile app tracks every enhanced monitoring requirement, super-emitter response timeline, equipment transition deadline, and reporting obligation.
Key Changes from OOOOa to OOOOb
Super-Emitter Response
New program for third-party detection of large emissions via satellite, aircraft, and remote sensing with operator investigation requirements.
Zero-Emission Pneumatics
Electric, instrument air, or mechanical controllers required where electricity is available. Gas-driven only at remote locations.
Increased Survey Frequency
Quarterly OGI at well sites and compressor stations. Bimonthly at certain compressor stations. Advanced technologies allowed.
Shorter Repair Timelines
Faster first attempt and final repair requirements with tighter delay-of-repair provisions.
Associated Gas Capture
Requirements to capture gas that would otherwise be routinely flared, including provisions for gas capture plans.
Existing Source Guidelines
EG OOOOc requires state plans for existing sources, creating compliance obligations for the entire oil and gas fleet.
Key NSPS OOOOb Compliance Deadlines
Well Site Fugitive Emissions Surveys
Conduct quarterly OGI surveys at affected well sites. Alternative screening approaches and advanced monitoring technologies may be used per EPA approval.
Compressor Station Fugitive Surveys
Conduct quarterly or bimonthly fugitive emissions surveys at compressor stations depending on station size and emission potential.
Super-Emitter Response
Investigate and respond to super-emitter notifications from EPA-certified third parties. Conduct root cause analysis, take corrective action, and report findings within specified timelines.
Pneumatic Controller Transition
Replace or convert natural gas-driven pneumatic controllers to zero-emission alternatives per the phased compliance schedule at locations with access to electrical power.
Leak Repair Requirements
Make first attempt at repair and complete final repair within shortened timelines. Tighter delay-of-repair provisions compared to OOOOa.
Repair Verification Survey
Conduct a verification resurvey within 15 days of completing a leak repair to confirm the repair was successful.
Well Completions
Conduct green completions for all hydraulically fractured wells with enhanced documentation and emissions capture requirements.
Associated Gas Capture
Implement gas capture plans to minimize routine flaring. Monitor and report flaring volumes and capture rates.
Reporting
Submit annual and semi-annual reports covering fugitive survey results, leak data, super-emitter responses, equipment compliance, and deviations.
Existing Source Compliance (EG OOOOc)
Track state plan development and implementation timelines for existing source compliance under the Emissions Guidelines.
Software Features for NSPS OOOOb Compliance
Enhanced Survey Scheduling
Schedule quarterly and bimonthly fugitive emissions surveys with support for OGI, Method 21, and advanced monitoring technologies.
Super-Emitter Response Tracking
Log super-emitter notifications, track investigation timelines, document corrective actions, and manage root cause analysis reports.
Pneumatic Controller Transition
Track controller inventory, identify replacement candidates, schedule conversions, and monitor phased compliance deadlines.
Leak Tracking & Repair
Manage leaks from detection through repair and verification with shortened OOOOb timeline enforcement.
Flare & Gas Capture Monitoring
Track flaring volumes, gas capture rates, and associated gas capture plan compliance.
Report Generation
Compile data for annual and semi-annual reports from tracked compliance activities across all facilities.
Multi-Site Management
Manage compliance across well sites, compressor stations, and processing plants with site-specific schedules.
Mobile App
Conduct surveys, respond to super-emitter notifications, and manage repairs from the field with our mobile app.


