Format and Content of DOE-STD-3024-98

DOE-STD-3024-98

Since the requirements in this standard have been selected to be most applicable at DOE Hazard

Category 2 nonreactor nuclear facilities, and more specifically to safety systems at those facilities,

further tailoring of the requirements for those systems would generally be inappropriate.

When applying this standard to non-safety systems at nuclear facilities and to systems at nonnuclear

facilities, the graded approach should be employed. Attachment 1 to this standard provides guidance on

these applications. The graded approach considers many factors that must be considered on a case-by-

case basis. These include importance of the facility, remaining facility lifetime, the magnitude of the

hazards involved, the importance of the system, and the complexity of the system. The types and

amount of information contained in an SDD will vary depending on the specific system being described.

Engineering judgement must be used to ensure that appropriate, useful, and necessary information is

provided in the SDD, while avoiding the expenditure of resources to include information that does not

add value to the SDD. The level of effort involved in the development of an SDD will be determined in

part by the availability of current and dependable design information. Attachment 2 to this standard

provides guidance on compiling technical information for preparation of SDDs and may be useful for

existing systems where a well documented design information is not readily available.

Format and Content of DOE-STD-3024-98

Following this introduction, this standard presents the outline for an SDD, followed by guidance on the

technical content of an SDD. Because this standard provides guidance on developing a document, the

technical content guidance sections have been numbered to correspond with the outline of that

document. This formatting is intended to make this standard easier to understand and easier to refer to

later.

This standard and the outline of the SDD have been developed in a style intended to be as user friendly

as possible. The standard and the corresponding SDDs may be read the first time on a straight-through,

cover-to-cover basis, or various sections may be referred to as the need arises. To facilitate this first

reading, certain information is presented early to promote a solid understanding of the information that

follows. Section 1 and Section 2 of the SDD provide preliminary information that is will be

advantageous to understanding the requirements that follow in Section 3. The requirements are

presented first in order to lay the ground work for why the system is designed with certain capabilities

and characteristics. Section 4 then describes how the system meets its requirements.

As used in this standard, the term "requirement" refers to those characteristics that have been

developed, specified, and approved as an output of the design engineering process, and have been issued

by the design engineering authority for the system. These requirements may be contained in documents

such as drawings, procurement specifications, components lists, bills of materials, installation

specifications, and testing specifications. All the engineering considerations behind these issued

requirements are considered the bases of the requirements. Basis information includes specific design

inputs and constraints (for example, functional and performance needs, mandated regulations, codes,

and standards and design procedures), and intermediate products of the design process (such as studies,

analyses, and calculations). The basis for a requirement might address several different considerations.

For example, the bases might include information that indicates that a portion of certain capability was

specified in order to meet the functional requirements that were design inputs, another portion because

of particular regulatory requirements, an additional part of the total capability was to meet certain

general engineering design constraints that might include site-specific engineering policies, standards,

and procedures, and that another part of the total capability was specified as safety margin.

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