Part I System Description A-General System Description 1
Standardized Emergency
Management System (SEMS)
Guidelines
Part I. System Description
Section A
General System Description
Part I System Description A-General System Description 2
The contents of this guideline have not been changed from the original document,
however, the guideline has been reformatted to meet
Americans with Disabilities Act (ADA) 508 standards.
Part I System Description A-General System Description 3
1. What Is SEMS?
The Standardized Emergency Management System (SEMS) is the system required by
Government Code Section 8607(a) for managing emergencies involving multiple
jurisdictions and agencies. SEMS consists of five organizational levels, which are
activated as necessary:
Field Response
Local Government
Operational Area
Regional
State
SEMS incorporates the functions and principles of the Incident Command System (ICS),
the Master Mutual Aid Agreement (MMAA), existing mutual aid systems, the operational
area concept, and multi-agency or inter-agency coordination.
Local governments must use SEMS to be eligible for funding of their response-related
personnel costs under state disaster assistance programs.
2. Purpose of SEMS
SEMS has been established to provide effective management of multi-agency and
multijurisdictional emergencies in California. By standardizing key elements of the
emergency management system, SEMS is intended to:
Facilitate the flow of information within and between levels of the system, and
Facilitate coordination among all responding agencies.
Use of SEMS will improve the mobilization, deployment, utilization, tracking, and
demobilization of needed mutual aid resources. Use of SEMS will reduce the incidence
of poor coordination and communications, and reduce resource ordering duplication on
multi-agency and multijurisdictional responses. SEMS is designed to be flexible and
adaptable to the varied disasters that occur in California and to the needs of all
emergency responders.
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3. Organizational Levels and Activation Requirements
The five SEMS organizational levels are described briefly below. Each level is
discussed in detail in Guidelines sections I.B through I.F. The levels are activated as
needed for an emergency. Minimum activation requirements from SEMS regulations are
shown in the matrix on the following page.
Field Response Level
The field response level is where emergency response personnel and resources, under
the command of an appropriate authority, carry out tactical decisions and activities in
direct response to an incident or threat. SEMS regulations require the use of ICS at the
field response level of an incident.
Local Government Level
Local governments include cities, counties, and special districts. Local governments
manage and coordinate the overall emergency response and recovery activities within
their jurisdiction. Local governments are required to use SEMS when their emergency
operations center is activated or a local emergency is declared or proclaimed in order to
be eligible for state funding of response-related personnel costs. In SEMS, the local
government emergency management organization and its relationship to the field
response level may vary depending upon factors related to geographical size,
population, function, and complexity.
There also exists state (e.g., CDF, CHP, State Colleges and Universities) and federal
jurisdictions at the Local Government organizational level of SEMS with responsibility to
manage and coordinate the overall emergency response and recovery activities within
their jurisdictions. State agencies are required to use SEMS at this level and should be
incorporated (or at least coordinated), as appropriate, at the SEMS Local Government
or Operational Area organizational level.
Federal agencies are not required to participate in the SEMS organization. However,
many federal agencies also have responsibility to manage and coordinate the overall
emergency response and recovery activities within their jurisdictions and often must
coordinate with other local and state jurisdictions (e.g., the USDA, Forest Service, the
California Department of Forestry and Fire Protection, and local fire agencies coordinate
wildfire suppression activities utilizing the SEMS Field level ICS Unified Command
concept).
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Operational Area
Under SEMS, the operational area means and intermediate level of the state's
emergency management organization which encompasses the county and all political
subdivisions located within the county including special districts. The operational area
manages and/or coordinates information, resources, and priorities among local
governments within the operational area, and serves as the coordination and
communication link between the local government level and regional level.
It is important to note, that while an operational area always encompasses the
entire county area, it does not necessarily mean that the county government
manages and coordinates the response and recovery activities within the county.
The governing bodies of the county and the political subdivisions within the
county make the decision on organization and structure within the operational
area.
Region
Because of its size and geography, the state has been divided into six mutual aid
regions. The purpose of a mutual aid region is to provide for the more effective
application and coordination of mutual aid and other emergency related activities.
In SEMS, the regional level manages and coordinates information and resources
among operational areas within the mutual aid region, and also between the operational
areas and the state level. The regional level also coordinates overall state agency
support for emergency response activities within the region.
State
The state level of SEMS tasks and coordinates state resources in response to the
requests from the REOCs and coordinates mutual aid among the mutual aid regions
and between the regional level and state level. The state level also serves as the
coordination and communication link between the state and the federal disaster
response system.
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Notes: This matrix highlights the flow-through nature of SEMS activation requirements.
Activation of an operational area EOC triggers activation of the regional EOC which, in
turn, triggers activation of the state level EOC.
*The EOC is usually activated, but in some circumstances, such as agricultural
emergencies or drought, a local emergency may be declared or proclaimed without the
need for EOC activation.
** Does not apply to requests for resources used in normal day-to-day operations which
are obtained through existing mutual aid agreements providing for the exchange of
furnishing of certain types of facilities and services as provided for under the Master
Mutual Aid Agreement.
§ Indicates sections in the California Code of Regulations, Title 19, Division 2, Chapter
1 (SEMS)
Situation is not applicable to the SEMS level.
4. Features Common to all Organizational/ Response Levels
SEMS has several features based on the Incident Command System (ICS). The field
response level uses functions, principals, and components of ICS as required in SEMS
regulations. Many of these field response level features are also applicable at local
government, operational area, regional and state levels. In addition, there are other ICS
features that have application to all SEMS levels.
Described below are features of ICS that are applicable to all SEMS levels. Their
application at each SEMS level is discussed further in Guidelines sections I.B-F.
Essential Management Functions
SEMS has five essential functions adapted from ICS. The field response level uses the
five primary ICS functions: command, operations, planning/intelligence, logistics and
finance/administration. At the local government, operational area, regional and state
levels, the term management is used instead of command. The titles of the other
functions remain the same at all levels where applicable.
Management by Objectives
The Management by Objectives feature of ICS as applied to SEMS, means that each
SEMS level establishes for a given operational period, measurable and attainable
Part I System Description A-General System Description 8
objectives to be achieved. An objective is an aim or end of an action to be performed.
Each objective may have one or more strategies and performance actions needed to
achieve the objective. The operational period is the length of time set by command at
the field level, and by management at other levels to achieve a given set of objectives.
The operational period may vary in length from a few hours to days, and will be
determined by the situation.
Action Planning
Action planning should be used at all SEMS levels. There are two types of action plans
in SEMS:
Incident Action Plans: At the field response level, written or verbal incident action
plans contain objectives reflecting the overall incident strategy and specific
tactical action and supporting information for the next operational period. Incident
action plans are essential and required element in achieving objectives under
ICS.
EOC Action Plans: At local, operational area, regional and state levels, the use of
EOC action plans provide designated personnel with knowledge of the objectives
to be achieved and the steps required for achievement. Action plans not only
provide direction, but they also serve to provide a basis for measuring
achievement of objectives and overall system performance. Action plans can be
extremely effective tools during all phases of a disaster.
The action planning process and action plan contents are discussed further in
Guidelines Part III.
Organizational Flexibility-- Modular Organization
The intent of this SEMS feature is that at each SEMS level:
1.) Only those functional elements that are required to meet current objectives need
to be activated, and 2.) That all elements of the organization can be arranged in
various ways within or under the five SEMS essential functions.
The function of any non-activated element will be the responsibility of the next highest
element of the organization. Each activated element must have a person in charge of it;
however, one supervisor may be in charge of more than one functional element.
For example, to establish a "Planning/Intelligence and Logistics Section," it is better to
initially create the two separate functions. If necessary, for a short time it is acceptable
Part I System Description A-General System Description 9
to place one person in charge of both functions. That way, the transfer of responsibility
can be made easier.
The reasons not to combine positions are:
If they need to be separated at a later time, this could cause confusion due to the
mix of assignments, staffing, etc.
This creates a "non-standard" organization, which would be confusing to
incoming agencies.
Also, General Staff, those functions directly under Management, such as liaison, safety,
public information, should not be combined due to the importance and specific nature of
these functions.
Span of Control
Maintaining a reasonable span of control is the responsibility of every supervisor at all
SEMS levels. The optimum span of control is one-to-five, meaning that one supervisor
has direct supervisory authority over five positions or resources. The recommended
span of control for supervisory personnel at the field response level and all EOC levels
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should be in the one-to-three to one-to-seven range. A larger span of control may be
acceptable when the supervised positions or resources are all performing a similar
activity.
Personnel Accountability
An important feature of ICS applicable to all SEMS levels is personnel accountability.
This is accomplished through the Organizational Unity and Hierarchy of Command or
Management feature along with the use of check-in forms, position logs and various
status keeping systems. The intent in bringing this ICS feature into SEMS is to ensure
that there are proper safeguards in place so all personnel at any SEMS level can be
accounted for at any time.
Common Terminology
In ICS, common terminology is applied to functional elements, position titles, facility
designations and resources. The purpose of having common terminology is to rapidly
enable multi-agency, multijurisdiction organizations and resources to work together
effectively. This feature, as applied to all SEMS levels, would ensure that there is
consistency and standardization in the use of terminology within and between all five
SEMS levels.
Resources Management
In ICS, resources management describes the ways in which field level resources are
managed and how status is maintained. At all SEMS levels, there will be some
functional activity related to managing resources. This will vary from level to level in
terms of directing and controlling, to coordination, to resource inventorying. Procedures
for effective resources management must be geared to the function and the level at
which the function is performed.
Integrated Communications
This feature of ICS relates to: hardware systems; planning for system selection and
linking; and the procedures and processes for transferring information. At the field
response level, integrated communications is used on any emergency. At all EOC
levels, and between all SEMS levels, there must be a dedicated effort to ensure that
communications systems, planning, and information flow are being accomplished in an
effective manner. The specifics of how this is accomplished at EOC levels will be
different than at the field response level.
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Response Information Management System (RIMS)
To achieve integrated communications between all EOC levels of SEMS, the Response
Information Management System (RIMS) was developed. RIMS is an internet-based
system used to coordinate and manage the State's response to disasters and
emergencies. RIMS automates reporting of information and tracking resources. RIMS
was developed by OES in 1995 and now over 2,000 internal and external clients access
RIMS via the Internet. RIMS is available to all cities, special districts, and state agencies
within California that have a computer with access to the Internet. Web access to RIMS
is controlled by user identifications and passwords. Web browser clients and Internet
access are standard and supported in nearly every government agency. RIMS user
base has expanded from 137 agencies to 2,500 by developing the Internet-based
system.
5. Mutual Aid
What Is Mutual Aid?
Incidents frequently require responses that exceed the resource capabilities of the
affected response agencies and jurisdictions. When this occurs, mutual aid is provided
by other jurisdictions. Mutual aid is voluntary aid and assistance by the provision of
services and facilities including, but not limited to: fire, police, medical and health,
communications, transportation, and utilities. Mutual aid is intended to provide adequate
resources, facilities, and other support to jurisdictions whenever their own resources
prove to be inadequate to cope with a given situation.
Mutual aid exists among the State and local government under the terms of the
California Disaster and Civil Defense Master Mutual Aid Agreement (MMAA). This
agreement was developed in 1950 and has been adopted by California's incorporated
cities, all 58 counties and the State.
Mutual Aid Systems
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The mutual aid program in California has developed statewide mutual aid systems.
These systems, operating within the framework of the MMAA, allow for the progressive
mobilization of resources to and from emergency response agencies, local
governments, operational areas, regions, and the State with the intent to provide
requesting agencies with adequate resources. The general flow of mutual aid resource
requests systems within mutual aid are depicted in Exhibit A-2, located on page 11.
Several discipline-specific mutual aid systems have been developed, including fire and
rescue, law enforcement, medical, and public works. The adoption of SEMS does not
alter existing mutual aid systems. These systems work through local government,
operational area, regional and state levels consistent with SEMS.
Mutual aid may also be obtained from other states. Inter-state mutual aid may be
obtained through direct state-to-state contacts, pursuant to inter-state agreements and
compacts, or may be coordinated through federal agencies.
Mutual Aid Coordinators
To facilitate mutual aid, discipline-specific mutual aid systems work through designated
mutual aid coordinators at the operational area, regional, and state levels. The basic
role of a mutual aid coordinator is to receive mutual aid requests, coordinate the
provision of resources from within the coordinator's geographic area of responsibility,
and to forward unfilled requests to the next level.
Mutual aid requests that do not fall into one of the discipline-specific mutual aid systems
are handled through the emergency services mutual aid system by emergency
management staff at the local government, operational area, regional, and state levels.
The flow of resource requests and information among mutual aid coordinators is
illustrated on the following page.
Mutual aid coordinators may function from an EOC, their normal departmental location,
or other locations depending on the circumstances. Some incidents require mutual aid
but do not necessitate activation of the affected local government or operational area
EOCs because of the incident's limited impacts. In such cases, mutual aid coordinators
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typically handle requests from their normal work location. When EOCs are activated, all
activated discipline-specific mutual aid systems should establish coordination and
communications with the EOCs:
When an operational area EOC is activated, operational area mutual aid system
representatives should be at the operational area EOC to facilitate coordination
and information flow.
When an OES regional EOC is activated, regional mutual aid coordinators should
have representatives in the regional EOC unless it is mutually agreed that
effective coordination can be accomplished through telecommunications. State
agencies may be requested to send representatives to the regional EOC to assist
OES regional staff in handling mutual aid requests for disciplines or functions that
do not have designated mutual coordinators.
When the State Operations Center (SOC) is activated, state agencies with
mutual aid coordination responsibilities will be requested to send representatives
to the SOC.
Mutual aid system representatives at an EOC may be located in various functional
elements (sections, branches, groups, or units) or serve as an agency representative
depending on how the EOC is organized and the extent to which it is activated.
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Resource Requests
OA - Operational Area
Notes: Local governments may request mutual aid directly from other local governments
where local agreements exist.
Discipline-specific mutual aid systems may have procedures that provide additional
methods of obtaining state resources.
Volunteer and private agencies may be involved at each level.
Participation of Community Based Organizations, Collaborative and Private
Agencies
Community Based Organizations (CBOs) and Collaborative may participate in the
mutual aid system along with governmental agencies. For example, the disaster
medical mutual aid system relies heavily on private sector involvement for
Part I System Description A-General System Description 15
medical/health resources. Some CBOs, such as the American Red Cross, Salvation
Army, and others are an essential element of the statewide emergency response to
meet the needs of disaster victims. CBOs mobilize volunteers and other resources
through their own systems. They also may identify resource needs that are not met
within their own systems that would be requested through the mutual aid system. CBOs
with extensive involvement in the emergency response should be represented in EOCs.
Some private agencies have established mutual aid arrangements to assist other
private agencies within their functional area. For example, electric and gas utilities have
mutual aid agreements within their industry and established procedures for coordinating
with governmental EOCs. In some functional areas, a mix of special district, municipal,
and private agencies provides services. Mutual aid arrangements may include both
governmental and private agencies. For example, public and private water utilities have
established a mutual aid system through the Water/Wastewater Agency Response
Network.
Liaison should be established between activated EOCs and private agencies involved in
a response. Where there is a need for extensive coordination and information
exchange, private agencies should be represented in activated EOCs at the appropriate
SEMS level.
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Part I System Description A-General System Description 17
Emergency Facilities used for Mutual Aid
Incoming mutual aid resources may be received and processed at several types of
facilities including: marshalling areas, mobilization centers, and incident facilities. Each
type of facility is described briefly below:
Marshalling Area: Defined in the Federal Response Plan as an area used for the
complete assemblage of personnel and other resources prior to their being sent directly
to the disaster area. Marshalling areas may be established in other states for a
catastrophic California earthquake.
Mobilization Center: Off-site location at which emergency services personnel and
equipment are temporarily located pending assignment, release, or reassignment. For
major area-wide disasters, mobilization centers maybe located in or on the periphery of
the disaster area.
Incident Facilities: Incoming resources may be sent to staging areas, other incident
facilities, or directly to an incident depending on the circumstances. Staging areas are
temporary locations at an incident where personnel and equipment are kept while
awaiting tactical assignments. Incident facilities are discussed further in section I.B.
6. Overview of SEMS Response
The following describes generally how SEMS is intended to work for various emergency
situations. The situations are described in terms of the involvement and interactions of
the five SEMS levels, and are intended to apply to all types of disasters that may occur
in California, such as, earthquakes, floods, fires, and hazardous materials incidents. Not
all possible situations and interactions are described.
This discussion assumes that appropriate emergency declarations and proclamations
are made. It also assumes that multi-agency or inter-agency coordination is
accomplished at each level by SEMS regulations. The responses at each level are
discussed in more detail in sections I.B. through I.F. of the guidelines. Note that SEMS
may be activated and resources mobilized in anticipation of possible disasters. Such
anticipatory actions may be taken when there are flood watches, severe weather,
earthquake advisories, or other circumstances that indicate the increased likelihood of a
disaster that may require emergency response and mutual aid. The extent of actions
taken will be decided at the time based on the circumstances.
Local Incident within Capability of Local Government
Field Response: Field units respond as needed using the Incident Command
System. Resources are requested through local government dispatch centers.
Part I System Description A-General System Description 18
Local Government: Supports field response as needed. Small incidents generally
do not require activation of the local government emergency operations center.
Emergency management staff may monitor the incident for possible increase in
severity. Larger incidents may necessitate activation of the EOC. Local
government will notify the operational area if the EOC is activated.
Operational Area: Activation of the operational area EOC is generally not needed
for small incidents, but consideration should be given to possibility of the incident
becoming larger. The operational area EOC would be activated if the local
government activates its EOC and requests operational area EOC activation.
Single Jurisdiction Incident -- Local Government Requires Some Additional
Resources
Field Response: Field units respond as needed using the Incident Command System.
Resources are requested through dispatch centers, department operations centers, or
in some cases the EOC. (Relationships among Incident Commanders, department
operations centers, and EOCs are discussed further in sections I.B. and I.C. of the
Guidelines.
Part I System Description A-General System Description 19
Local Government: Supports incident commanders with available resources. The local
government emergency operations center is activated. Local government notifies the
operational area lead agency. Resources are requested through operational area
emergency management staff and appropriate mutual aid coordinators. (In some cases,
mutual aid may be obtained directly from neighboring local government under local
mutual aid agreements.) Local government retains responsibility for managing the
response.
Operational Area: Operational area emergency management staff and mutual aid
coordinators locate and mobilize resources requested by local government. Emergency
management staff and mutual aid coordinators generally operate from normal
departmental locations for handling limited resource requests, and the EOC is not
activated. emergency management staff and mutual aid coordinators will communicate
with each other as needed to coordinate resource mobilization. If requested by the
affected local government, emergency management staff will activate the operational
area EOC and notify the OES Regional Administrator.
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Major Single Jurisdiction Disaster-- Local Government Requires Additional
Resources
Field Response: Field units respond as needed using the Incident Command
System. One or more Incident Commands may be established depending upon
the size and nature of the disaster. Resources are requested through dispatch
centers, department operations centers, or EOC.
Local Government: Supports Incident Commanders with available resources.
Local government activates its emergency operations center and notifies the
operational area lead agency. Resources are requested through operational area
emergency management staff and mutual aid coordinators. Local government
retains responsibility for managing the response.
Operational Area: Lead agency activates operational area emergency operations
center. Operational area emergency management staff and mutual aid
coordinators locate and mobilize resources requested by local Government.
Mutual aid coordinators go to the EOC or send representatives depending on
circumstances. Resources not available within the operational area are
requested through the OES Regional Administrator and regional mutual aid
coordinators.
Regional: OES Regional Administrator activates regional emergency operations
center (REOC) and notifies OES headquarters. OES Regional Administrator and
regional mutual aid coordinators locate and mobilize resources requested by the
operational area.
State: State OES activates the State Operations Center (SOC) and monitors the
situation.
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Major Area-Wide Disaster -- Damage in Multiple Operational Areas
Field Response: Field units from the affected jurisdictions respond as feasible
using the Incident Command System. Incident Command Posts may be
established at various sites throughout the disaster area. Resources are
requested through dispatch centers, department operations centers, or EOCs.
Local Governments: Ability to respond may be severely impaired. Local
governments assess capability and report situation to operational area. Local
governments mobilize all available resources. EOCs establish priorities; allocate
available resources to support the field response, and request assistance
through the operational area. Local governments retain responsibility for
managing the response within their jurisdiction.
Operational Areas: Lead agency activates emergency operations center and
notifies OES Regional Administrator. Emergency Operations Center assesses
the situation and reports information to the Regional Emergency Operations
enter (REOC). The emergency management staff and mutual aid coordinators
mobilize available resources in the operational area, request additional resources
through the REOC and regional mutual aid coordinators, and provide overall
situation information to local governments.
Part I System Description A-General System Description 22
Regional: OES Regional Administrator activates the REOC and notifies state
headquarters. REOC staff and regional mutual aid coordinators locate and
mobilize resources available within the region and from state agencies.
Additional resources are requested through the State Operations Center. State
agency representatives are requested for the REOC to assist in coordinating
support to the disaster area. REOC monitors situation and updates State
Operations Center.
State: State Operations Center (SOC) is activated and state agency
representatives are requested to staff the SOC. SOC coordinates state agency
response and mobilization of mutual aid resources from unaffected regions. SOC
may direct activation of other OES REOCs to assist in resource mobilization.
State agency department operations centers are activated. Federal assistance is
requested, if needed. SOC continuously monitors situation.