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Data updated: 12 Jan 2026.
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Document ID:
MIL-HDBK-520
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Overview
Title:
Systems Requirements Document Guidance
Scope:
This handbook contains guidance for preparation of a System Requirements Document (SRD) using established Systems Engineering (SE) processes. It contains a generic SRD template with guidance and standard SRD format. It is meant to be used as a guide to translate warfighter capabilities into acquisition requirements for a system or subsystem in any program Milestone (MS) or phase. The SE processes and principles found in this guidance are equally applicable to any DoD program/project. This handbook is for guidance only and cannot be cited as a requirement.
Status:
Active
Document Date:
13-APR-2023
Next Review Due:
11-APR-2028
FSC/Area:
SESS
Doc Category:
Department of Defense Handbook
Responsibilities
Lead Standardization Activity:
SE
Director, Systems Engineering
Preparing Activity:
11
Air Force Life Cycle Management Center - Aircraft Systems
Coordination:
Full
Army Custodian:
AR
US Army Combat Capabilities Development Command, Armaments Center
Navy Custodian:
SH
Naval Sea Systems Command (Ship Systems)
Air Force Custodian:
11
Air Force Life Cycle Management Center - Aircraft Systems
Changes to military standards or handbooks issued after August 1, 2003 are incorporated in the modified document.
Revision History
Click on column headings for a description of column content.
Media
Document Part Description
Dist Stmt
Document Date
Pages
Size
Revision A Notice 1 - Validation
A
13-APR-2023
1
2.0 KB
Revision A
A
19-DEC-2011
46
362.9 KB
Base Document
A
05-MAR-2010
77
486.9 KB
NOTE: It is recommended that you use Adobe Reader v7.0 or higher for optimal download performance; older versions should continue to work, but downloading large files may appear to take longer, so please be patient in those cases.
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WARNING: UNAUTHORIZED ACCESS TO THIS UNITED STATES GOVERNMENT COMPUTER SYSTEM AND SOFTWARE IS PROHIBITED BY PUBLIC LAW 99-474 (THE COMPUTER FRAUD AND ABUSE ACT OF 1986) AND CAN RESULT IN ADMINISTRATIVE, DISCIPLINARY OR CRIMINAL PROCEEDINGS.