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system safety approach. Therefore, environmental and health hazards can be analyzed and
managed with the same tools as any other hazard, whether they affect equipment, the
environment, or personnel.
A.4.2 Purpose (see 1.1). All DoD program managers shall establish and execute
programs that manage the probability and severity of all hazards for their systems
(DoD 5000.2-R). Provision for system safety requirements and effort as defined by this standard
should be included in all applicable contracts negotiated by DoD. These contracts include those
negotiated within each DoD agency, by one DoD agency for another, and by DoD for other
Government agencies. In addition, each DoD in-house program will address system safety.
A.4.2.1 Solicitations and contracts. Apply the requirements of section 4 to acquisitions.
Incorporate MIL-STD-882 in the list of contractual compliance documents, and include the
potential of a developer to execute section 4 requirements as source selection evaluation criteria.
Developers are encouraged to submit with their proposal a preliminary plan that describes the
system safety effort required for the requested program. When directed by the program manager,
attach this preliminary plan to the contract or reference it within the statement of work; so it
becomes the basis for a contractual system safety program.
A.4.3 System safety planning. Before formally documenting the system safety approach,
the program manager, in concert with systems engineering and associated system safety
MIL-STD-882D
APPENDIX A
11
professionals, must determine what system safety effort is necessary to meet program and
regulatory requirements. This effort will be built around the requirements set forth in section 4
and includes developing a planned approach for safety task accomplishment, providing qualified
people to accomplish the tasks, establishing the authority for implementing the safety tasks
through all levels of management, and allocating appropriate resources to ensure that the safety
tasks are completed.
A.4.3.1 System safety planning subtasks. System safety planning subtasks should:
a. Establish specific safety performance requirements (see A.4.3.2) based on overall
program requirements and system user inputs.
b. Establish a system safety organization or function and the required lines of
communication with associated organizations (government and contractor). Establish interfaces
between system safety and other functional elements of the program, as well as with other safety
and engineering disciplines (such as nuclear, range, explosive, chemical, and biological).
Designate the organizational unit responsible for executing each safety task. Establish the
authority for resolution of identified hazards.
c. Establish system safety milestones and relate these to major program milestones,
program element responsibility, and required inputs and outputs.
d. Establish an incident alerting/notification, investigation, and reporting process, to
include notification of the program manager.
e. Establish an acceptable level of mishap risk, mishap probability and severity
thresholds, and documentation requirements (including but not limited to hazards and residual
mishap risk).
f. Establish an approach and methodology for reporting to the program manager the
following minimum information:
(1) Safety critical characteristics and features.
(2) Operating, maintenance, and overhaul safety requirements.
(3) Measures used to eliminate or mitigate hazards.
(4) Acquisition management of hazardous materials.
g. Establish the method for the formal acceptance and documenting of residual mishap
risks and the associated hazards.
h. Establish the method for communicating hazards, the associated risks, and residual
mishap risk to the system user.
MIL-STD-882D
APPENDIX A
12
i. Specify requirements for other specialized safety approvals (e.g., nuclear, range,
explosive, chemical, biological, electromagnetic radiation, and lasers) as necessary (reference 6.6
and 6.7).
A.4.3.2 Safety performance requirements. These are the general safety requirements
needed to meet the core program objectives. The more closely these requirements relate to a
given program, the more easily the designers can incorporate them into the system. In the
appropriate system specifications, incorporate the safety performance requirements that are
applicable, and the specific risk levels considered acceptable for the system. Acceptable risk
levels can be defined in terms of: a hazard category developed through a mishap risk assessment
matrix; an overall system mishap rate; demonstration of controls required to preclude
unacceptable conditions; satisfaction of specified standards and regulatory requirements; or other
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System Safety Handbook系统安全手册下(117)
