By Melissa Guinan

– Executive Summary –

Disaster response operations expose incident support responder personnel to psychosocial hazards, including mental fatigue, stress, and sleep deprivation, which can impair both responder well-being and operational performance. This thesis adopts a readiness-oriented approach to mental health and frames the psychological demands of disaster work as a critical policy and organizational design challenge. It investigates the question: Which organizational strategies can mitigate the impact of mental fatigue and stress in disaster response personnel?

Disaster response work involves unexpected deployments, prolonged shifts, and challenging operational conditions, factors which increase the risks of burnout, chronic stress, and staff attrition. The frequency of large-scale disasters has risen sharply in recent years, placing heightened demands on responder organizations and intensifying workforce pressures.[1] A 2022 survey highlighted the consequences of inadequate mental health support, finding that untreated secondary traumatic stress significantly increases the likelihood that emergency managers will leave their roles.[2] Organizations in similarly high-pressure fields, such as aviation, healthcare, and the military, have integrated psychological support and resilience training into their core operations to sustain workforce readiness. Yet despite these examples, the mental health needs of disaster responders remain understudied. Existing research on related groups, such as first responders, healthcare personnel, and international humanitarian workers, provides insights into the psychosocial hazards of the response environment and potential organizational approaches.

This thesis applies Bardach’s eightfold path to define the mental operating environment, systematically evaluate existing organizational strategies, and develop and assess alternatives. It begins by examining the mental operating environment of disaster responders, establishing the context for evaluating policy interventions aimed at safeguarding responder mental health. Disaster response personnel face distinct environmental and psychological stressors, primarily mental fatigue, stress, and sleep deprivation, which collectively impair cognitive function, decision-making, and overall operational effectiveness. These hazards arise from unique conditions inherent to disaster operations, including working extended shifts, facing time pressure, decision-making in uncertain situations, experiencing secondhand trauma, and dealing with disrupted routines. The interplay among these psychosocial hazards creates compounding effects; for instance, mental fatigue exacerbates stress and sleep deprivation, which in turn further diminishes cognitive performance and resilience. Additionally, prolonged working hours, which are sometimes operationally unavoidable during disaster responses, magnify these hazards by constraining the critical recovery time needed for psychological and cognitive restoration. There is also important individual variability in how responders experience and manage these psychosocial challenges. Consequently, disaster response organizations face the complex design challenge of developing mental health support approaches that are appropriate for the context of disaster response.

Existing organizational policies, legal frameworks, and practices related to disaster responder mental health establish a baseline understanding of how disaster response organizations currently address psychosocial hazards, such as mental fatigue, stress, and sleep deprivation. At the sector level, the Occupational Safety and Health Administration (OSHA) provides general guidelines for disaster response worker safety but does not enforce specific work-hour limits or psychosocial hazard controls.[3] Similarly, key disaster response frameworks like the National Incident Management System (NIMS) and National Response Framework (NRF) focus primarily on operational effectiveness and personnel management rather than explicit mental health protections or fatigue management.[4] A review of current policies at federal, state, and voluntary agencies reveals the status quo in which disaster response organizations generally acknowledge the demanding work environment and emphasize flexibility, personal responsibility, and voluntary access to mental health resources rather than strict regulations or mandates. However, given that many responders underuse available mental health services, the current reliance on voluntary measures may be insufficient.

This thesis develops and evaluates three alternative approaches that disaster response organizations can use to mitigate psychosocial hazards and maintain responder mental health: rules, guardrails, and culture. Rules involve strict, organization-level mandates such as enforced limits on work hours, requiring significant organizational infrastructure and potentially conflicting with operational realities. Guardrails represent flexible, situationally applied procedures or best practices managed by field leadership and supervisors, designed to address mental fatigue, stress, and sleep deprivation while preserving operational adaptability. A culture approach emphasizes shaping employee attitudes and norms through education, awareness, and peer influence, relying heavily on individual initiative and informal mechanisms. The approaches are evaluated using the criteria of impact to operations, direct targeting of psychosocial hazards, support for self-assessment, and resources needed. The guardrail approach scores the highest in the evaluation due to its balance of operational flexibility with targeted interventions for responder mental health. Projecting the outcomes of a guardrail approach through a structured thought experiment confirms that it is realistic and effective within an operational tempo. The guardrail approach’s success depends significantly on supervisors’ training, judgment, and consistent implementation, but as it provides targeted, practical support and preserves the flexibility necessary to disaster operations, it is recommended above rigid rules or passive cultural strategies.

This thesis recommends the guardrail approach as an organizational strategy for managing psychosocial hazards within the operational realities of disaster response. It offers suggestions for successful implementation of the guardrail approach, including adaptable tools for supervisors, integration of fatigue assessments into operational planning, and training to equip supervisors to identify and address early signs of responder fatigue and stress. Finally, the thesis identifies areas for future research, recommending deeper exploration into emotional labor, intrinsic motivation, individual psychological resilience, and potential lessons from military practices.

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[1] President’s National Infrastructure Advisory Council, Reimagining Disaster Response and Resiliency, DRAFT // PRE-DECISIONAL (Washington, DC: Department of Homeland Security, 2024), 3, https://www.cisa.gov/sites/default/files/2024-12/DRAFT_Disaster-Response-Resiliency-Report508.pdf.

[2] T. Lucas Hollar et al., “Stressors and Mental Health Survey of Emergency Management Professionals: Factors in Recruiting and Retaining Emergency Managers,” Journal of Emergency Management 21, no. 3 (June 2023): JEMSMHS1, https://doi.org/10.5055/jem.0787.

[3] Occupational Safety and Health Administration, Principal Emergency Response and Preparedness: Requirements and Guidance (Washington, DC: U.S. Department of Labor, 2004), https://www.osha.gov/sites/default/files/publications/osha3122.pdf.

[4] Federal Emergency Management Agency, National Incident Management System (Washington, DC: Department of Homeland Security, 2017), 21–22; Federal Emergency Management Agency, “Worker Safety and Health Support Annex,” in National Response Framework (Washington, DC: Department of Homeland Security, 2013), WSH-1–WSH-8.