Arizona Department of Emergency and Military Affairs: Preparedness

The Arizona Department of Emergency and Military Affairs — DEMA — sits at the intersection of two distinct but deeply related missions: managing the state's military forces and coordinating responses when things go wrong at a scale that overwhelms local resources. This page covers the preparedness function specifically: how DEMA defines it, how the agency operationalizes it across 15 counties and hundreds of jurisdictions, and where its authority begins and ends.

Definition and scope

DEMA's preparedness function is grounded in Arizona Revised Statutes Title 26, which establishes the agency's authority over emergency management across the state. Preparedness, in DEMA's operational framework, means the continuous cycle of planning, training, exercising, and equipping that happens before a disaster — not during it. That distinction matters more than it might seem.

Arizona's hazard profile is genuinely unusual. The state contends with flash flooding in terrain that drains faster than any alert system can track, wildfire in Ponderosa pine forests at elevations above 7,000 feet, extreme heat events that regularly exceed 115°F in the Sonoran Desert, and seismic activity along fault systems that run through the Phoenix metropolitan area. DEMA's preparedness mission has to account for all of them simultaneously, across a geography larger than the United Kingdom.

The scope of DEMA's preparedness authority covers state agencies, county emergency management offices, and local jurisdictions that participate in state-administered grant programs — primarily the federally funded Homeland Security Grant Program administered through FEMA. Tribal nations within Arizona's borders operate under separate sovereign frameworks and maintain their own emergency management authorities; DEMA coordinates with tribal entities but does not direct them. Federal installations like Luke Air Force Base and Fort Huachuca operate under federal emergency management protocols, not state authority.

The Arizona Government Authority provides broader context on how DEMA fits within the full architecture of Arizona's executive branch, including its relationship to the Governor's Office and the Adjutant General who leads the agency.

How it works

DEMA's preparedness operations follow the framework established by the National Preparedness Goal, which FEMA published and which organizes preparedness around 5 mission areas: Prevention, Protection, Mitigation, Response, and Recovery. Arizona's State Hazard Mitigation Plan, required under the Stafford Act (42 U.S.C. § 5165) and updated on a five-year cycle, forms the documentary spine of the preparedness function.

The operational cycle breaks down roughly as follows:

  1. Hazard identification and risk assessment — DEMA analyzes historical incident data, climate modeling, and critical infrastructure inventories to identify which threats carry the highest probability and consequence for Arizona communities.
  2. Planning — The agency develops and maintains the Arizona State Emergency Response and Recovery Plan (SERRP), which assigns roles and responsibilities across more than 20 state agencies.
  3. Training — DEMA coordinates training at the Arizona Emergency Operations Center (AEOC) in Phoenix and through regional training programs delivered to county emergency managers.
  4. Exercises — Full-scale exercises, functional exercises, and tabletop exercises are conducted annually at state and county levels, following Homeland Security Exercise and Evaluation Program (HSEEP) standards maintained by FEMA.
  5. After-Action Review — Each exercise and major incident generates an After-Action Report (AAR) and Improvement Plan (IP) that feed back into the next planning cycle.

DEMA also administers the Emergency Management Performance Grant (EMPG), which in recent federal fiscal years has delivered roughly $4 million annually to Arizona for county-level emergency management staffing and capabilities.

Common scenarios

Three scenario types drive most of DEMA's preparedness investment in Arizona.

Flooding and monsoon events. The North American Monsoon brings an average of 2.4 inches of precipitation to Phoenix in July and August combined (NOAA National Centers for Environmental Information), concentrated in short-duration events that generate dangerous flash flooding in washes and low-water crossings. DEMA coordinates with the Arizona Department of Transportation and county offices to pre-position resources and maintain communication protocols before monsoon season begins each June.

Wildfire. Arizona averages more than 2,600 wildfires per year (Arizona State Forestry Division, DFFM), with the largest events requiring multi-agency coordination between DEMA, the Department of Forestry and Fire Management, federal land management agencies, and county sheriffs for evacuation management. The 2011 Wallow Fire — at 538,000 acres, the largest in Arizona history — demonstrated how quickly a wildfire can exceed local and state capacity and require federal emergency declarations.

Extreme heat. Maricopa County alone recorded 425 heat-associated deaths in 2023 (Maricopa County Department of Public Health). DEMA's preparedness role in heat events centers on cooling center coordination, vulnerable population registries, and interagency communication with the Arizona Department of Health Services.

Decision boundaries

Understanding what DEMA preparedness does not cover is as important as understanding what it does. The department does not regulate private-sector business continuity planning, which falls outside statutory authority entirely. It does not set building codes or land-use regulations that affect disaster risk — those authorities rest with the Arizona Department of Housing and municipal governments respectively. It does not manage federal disaster declarations directly; that process runs through the Governor's request to the President under the Stafford Act, though DEMA prepares the documentation that supports such requests.

At the local level, Arizona's 91 incorporated municipalities and 15 counties maintain primary responsibility for first response. DEMA's preparedness function supplements and coordinates that local capacity — it does not replace it. When a flood or fire stays within a single county's ability to manage, DEMA operates in support mode. Activation of the AEOC for a full state response occurs only when an event exceeds local and county capacity, or when a Gubernatorial Emergency Declaration is issued.

For a broader orientation to Arizona's state institutions and how they interrelate, the Arizona State Authority home page provides a structured starting point across all major agencies and functions.

References