The Duty to Foresee: Air Standpipes in the Built Environment:

The Duty to Foresee and the  Cornerstone of Negligence

The built environment is changing faster than fire codes are keeping up. Across the country, high-rise residential and mixed-use towers are reshaping city skylines. Distribution centers exceeding one million square feet are being permitted and built at a pace never seen before. Data centers, massive, densely packed, and filled with materials that burn hot and unpredictably, are multiplying in suburban and rural corridors. Each of these structure types presents firefighter air supply challenges that simply did not exist at this scale a generation ago. The question of whether a firefighter can complete a mission and return safely is no longer hypothetical. It is a practical operational problem being forced on departments that were never equipped, or trained, to answer it.

That framework applies directly and urgently to how fire departments and municipal governments approach high-rise buildings and large-footprint commercial structures. When it comes to these occupancies, the risk is not theoretical. It is documented. It has been published in fire service research, encoded in national model codes, and experienced by firefighters on the fireground for decades. The question is not whether the harm is foreseeable; that threshold has already been crossed. The question is what decision-makers are doing with that knowledge.

The Documented Realities of High-Rise and Large-Footprint Fires

The realities of high-rise and large-footprint fires are not speculative. They are well documented. Understanding them is essential because each one represents a foreseeable condition that fire departments and municipalities are on notice about. The 2005 Walmart fire in Plainfield, Indiana is a reference point that belongs in this conversation. A large-footprint commercial structure, a fully involved interior fire, and crews confronting the air and access constraints that define these buildings. That fire did not happen in an abstract scenario. It happened in a building type that continues to be permitted and constructed across the country without mandatory air resupply infrastructure.

Delayed Access Due to Non-Functioning Elevators

Once a fire alarm activates in a high-rise building, elevator reliability becomes immediately uncertain. Depending on the system, the building, and the alarm configuration, elevators may recall to the ground floor, lock out entirely, respond erratically, or behave in ways that vary from one event to the next. What firefighters cannot do is count on them. The same vertical access that serves the building during normal operations becomes unreliable the moment the alarm sounds, and responding crews must plan accordingly. In practice, that means stairs. In a building where the fire is located on an upper floor, that means a full stair climb in structural firefighting gear, carrying tools, equipment, and a charged hoseline, before any suppression activity begins. Crews that build their plan around elevator access are building their plan around something that may not be there when they need it most.

Prolonged Stair Climbs with Heavy Equipment

A standard SCBA cylinder provides approximately 15 to 20 minutes of air under moderate exertion. Climbing 15, 20, or 30 flights of stairs in full structural PPE with hand tools and a hoseline is not moderate exertion. The metabolic demand is substantially higher, which accelerates air consumption significantly. By the time a crew reaches the fire floor in a tall building, a meaningful portion, sometimes the majority, of their available air has already been consumed getting there. What remains must cover search and rescue, fire suppression, and the retreat back to clean air. In many high-rise scenarios, that math simply does not close.

Lack of Air Resupply at Scene

In a residential structure fire, a crew that exhausts their air supply can retreat to fresh air and swap cylinders at the apparatus. In a high-rise building or a large-footprint commercial structure, that option is not available in the same way. A crew operating on the 18th floor who reaches a low-air warning signal cannot safely descend, swap cylinders at street level, and return to the operational area within any reasonable time window. Without a Firefighter Air Replenishment System, a pre-plumbed air standpipe built into the structure, there is no mechanism for maintaining sustained interior operations. Operations are delayed, or, in the worst-case scenarios, the interior attack is lost and the fire becomes defensive.

Disorientation, Mayday Events, and Firefighter Entrapment

Large and complex structures, including high-rises with multiple stairwells and elevator cores, big-box commercial buildings with open floor plates and limited interior landmarks, and underground parking and mixed-use facilities, create conditions where crew disorientation is foreseeable. A firefighter who becomes disoriented in a smoke-filled environment while carrying depleted air is not in a survivable situation without rapid intervention. Mayday events and firefighter entrapment in high-rise structures are documented in the line-of-duty death (LODD) record. They are not freak accidents. They are the predictable result of structural conditions that were known to exist and air constraints that were known to be insufficient.

Delayed Interior Attack and Rescue Operations

When firefighters cannot sustain interior operations, the result is delay. They may be withdrawing to exchange air, unable to reach the fire floor with remaining air, or forced into a conservative operational posture by air constraints. In fire suppression, delay is never a neutral outcome and every minute the fire burns unchallenged, it grows larger, conditions on the floor above and below become less survivable, and the window for successful rescue narrows in ways that cannot be recovered once closed. The delay that flows directly from inadequate air resupply is not an acceptable operational variable. It is a foreseeable and preventable contributor to harm, both to the occupants who needed someone to reach them and to the firefighters who ran out of air trying.

Prolonged Contact with Harmful By-Products During Overhaul

Overhaul, the process of searching for hidden fire extension and eliminating hotspots after a primary knockdown, is often conducted with SCBA in environments where toxic by-products of combustion and deadly gases, such as hydrogen cyanide and carbon monoxide, remain elevated. In a high-rise or large-footprint commercial building, overhaul can be an extended operation covering large areas across multiple floors. Without an air resupply infrastructure, crews either rotate out repeatedly, with each rotation consuming time and operational momentum, or they compromise on respiratory protection. Both outcomes are foreseeable, and both produce documented harm: one through operational inefficiency that allows conditions to worsen, the other through direct exposure to carcinogens and toxins with well-established health consequences for firefighters.

Foreseeability Is Already Established. Duty Follows.

Each of the conditions described above, including elevator non-function, prolonged stair climbs, lack of air resupply, disorientation and Mayday events, delayed attack and rescue operations, and extended overhaul exposure, is individually foreseeable. Together, they form a pattern that makes a specific conclusion unavoidable: it is entirely foreseeable that firefighters operating in large vertical or large footprint buildings will exhaust the air in their self-contained breathing apparatus before completing search, rescue, suppression, and overhaul activities. This is not a novel argument.

Once foreseeability is established, the law imposes a duty. That duty falls on the parties who had the knowledge and the authority to act: municipal governments that approve building permits, code authorities that adopt or choose not to adopt fire code appendices, and fire departments that identify operational gaps in their response capability. The duty is not to eliminate all risk. The duty is to implement reasonable, preventive measures. And the legal standard for what is reasonable shifts the moment a mitigation technique is well-known, technologically feasible, and recognized by the fire codes.

Air Standpipe Systems: The Recognized Mitigation

Firefighter Air Replenishment Systems (FARS) are pre-plumbed, pressurized air standpipe networks built into the stairwells and key operational areas of high-rise and large-footprint buildings, and the systems are not experimental. They are a mature, proven technology that addresses the documented air problem directly. FARS allows crews to refill SCBA cylinders without leaving the building or the operational area. It is the air equivalent of a water standpipe: infrastructure that extends the reach of firefighting operations into structures where portable supply alone is insufficient.

The code framework has caught up with the operational reality. Firefighter Air Replenishment Systems (FARS) are addressed in the International Fire Code Appendix L, Uniform Fire Code Appendix F, and relevant NFPA appendices. The inclusion of these provisions in nationally recognized model codes is not incidental. It reflects the fire service community’s formal recognition that the air problem in these structures is real, preventable, and addressable through infrastructure.

That code recognition carries legal weight through the doctrine of constructive notice: once a provision enters a nationally recognized model code, municipalities and building officials are considered to be on notice of it, regardless of whether they adopted it locally. A jurisdiction that declined to adopt the relevant FARS appendix is not protected from liability by that choice. It may, in fact, be more exposed, because it can be demonstrated that the standard of care evolved to address a known risk, and the jurisdiction chose not to apply it.

The Standard Is Clear: Ignoring a Known Mitigation Is Unreasonable

When a mitigation technique is well-known, feasible from a technological standpoint, and recognized in the applicable codes and standards, failing to implement or require it is difficult to defend as a reasonable decision. Courts evaluating negligence do not require perfection. They require reasonableness. And reasonableness, in this context, is measured against what a reasonable municipal official or code authority, with access to the same fire service research, the same LODD reports, and the same model code appendices, would have done.

Air standpipe systems satisfy every element of the reasonableness test. The risk they address is well-documented. The technology is proven. The cost is proportionate to the scale of new construction. The code authority to require them exists in more than 400 jurisdictions across 26 states. The argument that it is unreasonable to require them, in the face of the documented operational record, is an argument that courts will have increasingly little patience for.

What Fire Departments and Municipal Managers Must Do Now

For fire departments: conduct an honest inventory of every high-rise and large-footprint building in your response area. For each structure, ask whether your crews can accomplish search, rescue, suppression, and overhaul within the air they carry. Where the answer is no, or even uncertain, that assessment needs to be documented and formally communicated to municipal leadership. A fire chief who identifies the gap and puts it in writing has fulfilled a professional and legal obligation. A fire chief who stays silent shares the liability when the gap produces a casualty.

For municipal managers and city councils: the permit counter is the intervention point. Requiring FARS as a condition of permit approval for qualifying structures, including high-rises and large-footprint buildings that exceed reliable single-cylinder operational range, is both legally defensible and operationally essential. Once a building is constructed and occupied, retrofitting becomes dramatically more expensive and technically complicated. The window to do the right thing, at the right cost, is the design phase. It closes when the permit is issued and the building goes up.

The Firefighter Air Coalition’s mission is simple: More Air. More Time. The coalition has assisted several jurisdictions with code language, operational guidance, and implementation resources to help fire departments and municipal governments close this gap. What remains is not a knowledge problem; the research is published, the code framework is written, and the technology is proven and deployed in jurisdictions across the country. What remains is a decision, one that belongs to the communities that permit these buildings and the departments that respond to them, and it is a decision that will be made one way or another: deliberately, at the design phase, when the cost is manageable and the outcome is preventable, or by default, when the alarm sounds and the air runs out.

About the Author

Michael Anderson is a firefighter and legal expert with Anderson Consulting. He advises fire departments and municipal governments on operational risk, liability exposure, and fire code compliance — bridging the fireground and the courtroom to help communities understand their legal obligations before an incident defines them.