Between February 2025 and August 2026, California’s Division of Occupational Safety and Health (Cal/OSHA) issued a series of significant citations following three fatal avalanche incidents in the Sierra Nevada. These investigations, which spanned two distinct types of employers—a major resort ski patrol and a boutique guide service—have brought a critical piece of backcountry safety equipment under intense regulatory scrutiny. While avalanche airbags are widely accepted as life-saving tools, Cal/OSHA’s recent enforcement actions reveal a fundamental disconnect between owning the technology and effectively utilizing it in a high-stress crisis.
The regulatory focus centers on a narrow but vital distinction: the difference between possessing Personal Protective Equipment (PPE) and ensuring that personnel are trained to deploy it under real-world, life-threatening conditions. As these cases proceed through the appeals process, they are forcing a broader conversation about whether current industry training standards are sufficient to meet the requirements of occupational safety law.
A Chronology of Recent Fatalities
The regulatory crackdown began in the wake of three distinct tragedies that shook the Sierra Nevada skiing community over a nineteen-month period.
On February 14, 2025, Claire Murphy, a 25-year-old Mammoth Mountain ski patroller, was killed while performing terrain assessment and mitigation in the Avalanche Chutes area. Cal/OSHA’s subsequent investigation resulted in three citations totaling $26,810. A core component of the state’s finding was that the resort had failed to ensure that its patrollers were capable of effectively deploying their avalanche airbags during an emergency. Mammoth Mountain management formally appealed the decision, maintaining that their internal protocols met existing industry standards.
Less than a year later, on December 26, 2025, tragedy struck Mammoth Mountain again. Cole Murphy, a 30-year-old patroller unrelated to the previous victim, was caught in an avalanche while conducting routine mitigation work on Lincoln Mountain. Despite a rescue effort, he was buried for approximately 15 minutes and succumbed to his injuries. In this instance, Cal/OSHA’s findings were more severe, issuing three citations totaling $126,000. Most notably, the division issued a $90,000 fine classified as "willful," alleging that the resort failed to ensure that employees were properly instructed in the mechanical deployment of their airbags. Additional fines were levied regarding communications protocols and the failure to confirm personnel were clear of the slide path before initiating explosives.
The third case, involving the Blackbird Mountain Guides hut trip on February 17, 2026, resulted in a catastrophic loss of life. Nine individuals, including guides Andrew Alissandratos, Nicole Choo, and Michael Henry, as well as six clients, were killed in an avalanche near Castle Peak. Following a comprehensive investigation, Cal/OSHA issued seven citations totaling $151,300. Among the serious violations was an allegation that the guide service failed to perform a mandatory hazard assessment to determine if specific PPE—namely avalanche airbags and AvaLungs—was required for the terrain and conditions. Blackbird has since filed a formal appeal, highlighting the complexities of applying standard industrial safety frameworks to the unpredictable nature of backcountry mountain guiding.
The Regulatory Standard: PPE and Compliance
To understand the weight of these citations, one must look at how Cal/OSHA categorizes avalanche airbags. In the eyes of the regulator, an airbag is not merely an accessory; it is classified as PPE. Under California labor law, the burden of safety rests squarely on the employer. This mandate requires employers to perform three specific functions: assess the need for PPE based on the work environment, provide the equipment if necessary, and verify that the employee is trained to operate the device under realistic stress conditions.
The citations issued to both Mammoth Mountain and Blackbird Mountain Guides suggest that these employers failed in the third requirement: training. By documenting that these individuals were not sufficiently prepared to deploy their airbags, Cal/OSHA is signaling a shift in how they view safety in the workplace. Simply having a device attached to a pack is no longer considered sufficient for compliance. The regulator is essentially arguing that if an employer provides equipment intended to prevent death, that employer is legally responsible for ensuring the employee has the muscle memory to use it when the stakes are at their highest.
Scientific Evidence and the Failure of Deployment
The logic underpinning Cal/OSHA’s citations is supported by significant peer-reviewed research. A 2014 study published in the journal Resuscitation, led by researcher Pascal Haegeli, analyzed 424 cases of individuals involved in major avalanches. The findings were stark: a deployed airbag reduced mortality rates by approximately 50%, dropping the risk of death from 22% to 11%.
However, the data also revealed a troubling reality: roughly 20% of the individuals in the study either could not or did not deploy their airbags. Further breakdown of these non-inflation cases attributed 60% of failures to user error—specifically the failure to reach for or pull the trigger handle.
Crucially, the study noted a significant disparity in performance between professionals and recreationalists. While recreational users failed to deploy their bags at a rate of roughly 14%, avalanche professionals—those who work in the field daily—still exhibited a 5% failure rate. This 5% represents a critical, often fatal, margin. Experts suggest that the difference is rooted entirely in training. When a person is caught in an avalanche, the window for deployment is often measured in seconds. If the movement is not a conditioned, reflexive response, the likelihood of failure increases dramatically, regardless of the individual’s expertise.
Implications for the Industry
The legal and operational ramifications of these citations are significant. For resorts and guide services, the precedent set by Cal/OSHA suggests that safety protocols must now evolve to include "stress-testing" of life-saving gear. This does not mean simply reading a manual or watching a demonstration; it implies a move toward regular, documented practice sessions where employees are required to deploy their airbags using practice cylinders.
Many manufacturers already offer refillable practice cartridges, designed specifically to allow users to pull the handle dozens of times without the cost or hassle of replacing expensive compressed-air tanks. Yet, in the professional community, these practice tools remain underutilized. The Cal/OSHA cases serve as a sobering reminder that the "weakest link" in an avalanche safety system is rarely the equipment itself, but rather the human element—the ability to act calmly and decisively during the most chaotic moments of an avalanche.
For the wider community of backcountry travelers, the takeaway is equally direct. Whether one is a professional guide, a ski patroller, or a weekend enthusiast, the question is not what gear is in the pack, but when it was last deployed. The regulatory stance adopted by California authorities suggests that we are entering a new era of safety, where the responsibility for survival is shared between the quality of the gear and the rigor of the training required to activate it.
As the appeals process for these cases continues, the outdoor industry will be watching closely. If these citations are upheld, they may set a new national standard for professional mountain operations, effectively mandating that for any high-risk job in the backcountry, the ability to deploy an airbag must be treated with the same level of seriousness as CPR certification or wilderness first aid. In the mountains, where the environment is unforgiving, the gap between a tool on one’s back and a tool in one’s hand may ultimately be the difference between a near-miss and a fatality.
