Ontario Fire Code Specimen Storage Requirements

Author: Hannah Ramsammy, P.Eng

What Facilities Need to Know in 2026

Navigating New Fire Safety Requirements for Biological Specimen Storage

The 2026 Ontario Fire Code specimen storage requirements have significantly changed compliance obligations for medical laboratories, healthcare facilities, research institutions, veterinary clinics, and museums across Ontario. Effective January 1, 2026, the updated Ontario Fire Code introduced stricter fire safety requirements for the storage of biological specimens preserved in flammable or combustible liquids such as formalin and ethanol. Many facilities that were previously compliant may now face gaps in compliance, making it essential to assess specimen storage practices, fire protection measures, and facility design requirements under the updated Ontario Fire Code.

Understanding the Impact of the Updated Fire Code Requirements

The recent updates to the Ontario Fire Code were introduced to align provincial requirements with the National Fire Code of Canada and establish more consistent fire safety standards nationwide. A defining feature of these changes is their retroactive application to existing facilities, meaning they apply equally to new and existing facilities. As a result, existing facilities are not grandfathered from these requirements; regardless of age, facilities must comply with the applicable provisions of the current Code.

This has created immediate pressure across the industry. As of January 1, 2026, many specimen storage areas that previously met regulatory expectations are now considered deficient. The impact is significant, requiring facilities to reassess infrastructure, storage practices, and fire protection strategies in a much more rigorous way.

The underlying reason for these changes is rooted in the fire and explosion risks associated with storing biological specimens in flammable or combustible liquids. Glass containers can shatter under heat, while plastic containers can melt, releasing flammable contents into the room. As vapours accumulate and temperatures rise, conditions can rapidly escalate to ignition or explosion. The updated Code specifically targets this hazard by introducing enhanced containment, construction, and explosion protection measures.

Who Is Affected and Why It Matters

The scope of the Ontario Fire Code changes extends beyond hospital laboratories to include any facility storing biological specimens in flammable or combustible liquids. This includes research institutions, veterinary clinics, independent diagnostic labs, and even museums with preserved collections. However, the impact is particularly significant for medical laboratories, where fire code compliance is closely linked to accreditation requirements and ongoing operations.

For medical laboratories, compliance is not just a regulatory concern; it is directly tied to operational viability. Accreditation Canada Diagnostics, which governs laboratory accreditation, requires compliance with the Ontario Fire Code as a prerequisite. Facilities that fail to meet the updated requirements risk inspection orders, loss of accreditation, and potential disruptions to operations.

The relationship between fire code compliance and accreditation elevates this issue beyond a technical upgrade, making it a strategic priority for laboratory operators. Compliance is now essential to maintaining business continuity, reputational standing, and the ability to provide critical healthcare services.

Key Requirements and Their Practical Implications

The Ontario Fire Code changes introduce a series of interrelated requirements that affect how specimen storage rooms are designed, constructed, and operated. While the Code generally requires flammable liquids to be stored in approved containers designed to limit leakage during fire exposure, laboratory operations often rely on glass and plastic containers for specimen preservation. This creates unique fire safety challenges that require additional safeguards to address the risks associated with container failure.

To address this, the updated regulations require specimen storage rooms to meet explosion protection requirements under OFC Subsection 4.2.9. These include explosion venting systems designed to relieve pressure safely to the exterior and prevent structural failure during a deflagration event. In practice, explosion vents must be located on or near exterior walls, appropriately sized, and designed in accordance with standards such as NFPA 68.

Ontario Fire Code laboratory compliance

At the same time, storage rooms must be constructed using damage-limiting construction. The interior walls, floors, and ceilings must be designed to withstand the pressure wave generated during an explosion event, allowing the explosion vents to activate before the pressure wave breaches the interior partitions. This ensures that explosion pressures are relieved through the intended venting pathway rather than causing uncontrolled structural failure.

Overcoming Compliance Challenges in Existing Facilities

While the intent of the Ontario Fire Code changes is clear, implementation can be challenging for existing specimen storage facilities due to physical constraints within existing buildings. Many storage rooms are located in basements or interior locations where installing explosion vents to the exterior is not feasible due to the lack of direct exterior access, structural limitations, or insufficient separation distances from adjacent occupancies. In addition, existing storage room partitions may not meet damage-limiting construction requirements, and retrofitting these assemblies can be complex and costly.

Recognizing these constraints, the Code allows for alternative solutions that achieve an equivalent level of safety. Developing an alternative solution requires a detailed assessment of existing facility conditions, applicable Code requirements, and fire and explosion hazards to demonstrate how the facility can achieve compliance where prescriptive requirements cannot be readily implemented. This typically involves a performance-based evaluation of the proposed design against the objectives and intent of the Code.

Explosion prevention systems represent one alternative solution for existing facilities. Designed in accordance with standards such as NFPA 69, these systems prevent explosions by controlling the conditions necessary for ignition, thereby eliminating the need to manage explosion pressures after ignition occurs. This can provide a practical compliance pathway where explosion venting is not feasible.

The Path Forward for Specimen Storage Facilities

The Ontario Fire Code changes represent a significant change in how biological specimen storage risks are managed across affected facilities. These requirements are already in force, and many existing facilities must now evaluate whether their current storage arrangements meet the updated requirements. Organizations should act promptly to understand their obligations, assess existing conditions, and identify appropriate compliance solutions.

Addressing these requirements requires more than a review of storage practices; it requires an understanding of the applicable hazards, Code objectives, and available compliance pathways. For medical laboratories, proactive action is not only necessary for compliance, but essential for ensuring safety, maintaining accreditation, and sustaining long-term operations.

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