Author: Chris Scott
Canada’s federal Volatile Organic Compounds (VOC) Phase 2 regulations (SOR/2025-88) are now in effect, and for many operators, compliance is proving more complex than expected.
While the rules are designed to reduce VOC and benzene emissions from storage tanks and loading facilities, they also expose a deeper challenge: many tank systems were never engineered with today’s emissions performance expectations in mind.
Designed to reduce volatile organic compound and benzene emissions from storage tanks and loading facilities, the regulations introduce new inspection, reporting, and emission control requirements across terminals, refineries, petrochemical facilities, bulk plants, and other qualifying operations.
But compliance isn’t simply a matter of installing a vapor recovery unit or upgrading a vent. It requires a system-level understanding of how tanks actually operate.
As facilities work through the details of VOC Phase 2, one principle continues to surface: successful compliance starts with understanding how your tank system behaves under pressure.
What VOC Phase 2 Actually Requires
Key VOC Phase 2 requirements include:
- Regulatory & Reporting
- Registration of qualifying tanks with ECCC
- Annual emissions reporting
- Inspection & Monitoring
- Monthly LEL testing for certain IFR tanks
- Inspection and monitoring of floating roof seals
- Control & Mitigation
- Installation of vapor recovery or destruction systems
- Staged compliance timelines based on benzene content and vapor pressure
Facilities with higher benzene concentrations were impacted first, with additional thresholds coming into effect in 2026 and beyond.
While the requirements are detailed, the impact is specific to how each tank system behaves under field operating conditions.
Typical Vapour recover system installation on a controlled tank at a midstream facility
Spartan's Tank System Assessment evaluates the full pressure control system to identify where emissions, inefficiencies, and operational risk originate:
Design & Capacity
- Tank MAWP (Maximum Allowable Working Pressure) and design limits
- Setpoint spacing between blanketing regulators, VRUs, PVRVs, and emergency vents
Controls & Logic
- Vent lift history and nitrogen consumption
- Pressure coordination logic within the DCS
- In-breathing and out-breathing capacity
Operations & Maintenance
- Vapor recovery performance
- Seal integrity and inspection alignment
Regulatory Alignment
- Pump-in and pump-out rate alignment
- Regulatory applicability and reporting obligations
This system-level approach helps operators prioritize upgrades strategically, reduce unnecessary capital spend, and build a compliance roadmap that also improves operability.
Technology That Supports the System
Once pressure behavior and system constraints are understood, technology can be applied with far greater precision, and far less rework.
Emissions & Compliance Solutions
- Vapour recovery systems
- Tank blanketing systems
- Tank vent valves and enhanced seal vents
- Flame arrestors
- Vent lift monitoring systems
Measurement & Monitoring
- Process tank level measurement
- Inventory tank gauge level measurement
- Continuous gas detection solutions
- Methane and VOC sensors
- Perimeter laser gas detection
Digital Optimization
- “Tank Intelligence” analytics
- Machine learning using existing pressure, temperature, level, and flow data
- Fugitive emission detection and quantification
Upstream wellsite tank battery
By combining pressure management engineering with automation and digital monitoring, operators gain continuous visibility into tank performance, rather than relying solely on periodic inspections.
IFR Tanks: Managing the Operational Impact
In many cases, continuous digital monitoring can provide higher data integrity and improved safety compared to periodic manual testing, while reducing worker exposure and operational disruption.
- Monthly catalytic bead Lower Explosive Limit (LEL) testing
- Strict wind-speed conditions during testing
- Minimum 14-day spacing between inspections
- Manual reporting
- Multi-year baseline tracking
For many facilities, this means climbing tanks every month, increasing safety exposure and operational disruption.
Spartan is actively engaging with ECCC to explore deviation pathways that would allow fixed gas detection systems and automated reporting to replace manual monthly climbing, subject to approval. In many cases, continuous digital monitoring can offer stronger data integrity and improved safety compared to periodic manual testing.
Where Compliance Creates Opportunity
When properly evaluated, tank pressure optimization can:
- Reduce fugitive emissions
- Improve VRU efficiency
- Minimize unintended lift events
- Extend asset life
- Improve nitrogen efficiency
- Reduce manual intervention
In this way, compliance becomes a catalyst for smarter tank management.
Your Partner in Tank Performance
Spartan operates at the intersection of regulatory understanding, pressure management engineering, automation integration, digital emissions monitoring, and field service support.
With strong Western Canadian service centres, mobile vent service capabilities, and integrated engineering expertise, we support tank systems across their lifecycle, from assessment and design through implementation and ongoing optimization.
Canada’s VOC Phase 2 regulations are detailed and evolving. Facilities that approach compliance as a system challenge, rather than a hardware purchase, are better positioned for strong, long-term outcomes.
If you’re evaluating your tank fleet or building your compliance roadmap, the right strategy starts with understanding how your tanks actually behave under pressure.
That’s where smarter system integration makes the difference.
