BY ORDER OF THE
SECRETARY OF THE AIR FORCE
DEPARTMENT OF THE AIR FORCE
MANUAL 91-118
13 MARCH 2020
Incorporating Change 1, 1 February 2023
Safety
SAFETY DESIGN CRITERIA FOR
NUCLEAR WEAPON SYSTEMS
COMPLIANCE WITH THIS PUBLICATION IS MANDATORY
ACCESSIBILITY: Publications and forms are available for downloading or ordering on the e-
Publishing website at www.e-Publishing.af.mil.
RELEASABILITY: There are no releasability restrictions on this publication.
OPR: AFSEC/SEW Certified by: AFSEC/SEI
(Colonel Lawrence A. Nixon)
Pages: 43
This manual implements Department of the Air Force Instruction (DAFI) 91-101, Air Force
Nuclear Weapons Surety Program. It applies to all organizations that design, develop, modify,
evaluate, operate or acquire a nuclear weapon system. This manual applies to all civilian
employees and uniformed members of the Regular Air Force, Air Force Reserve, and Air National
Guard. This manual applies to the United States Space Force (USSF) unless and until such time as
separate service guidance is published. In this event, USSF guidance shall prevail in application
to the USSF. *Note: All references to United States Air Force (USAF) terminology, units,
grades, and positions will also apply to the equivalent in the USSF, as appropriate. For example,
references to major commands (MAJCOMs) or numbered Air Force (NAFs) will also
apply to field commands. References to wings will also apply to deltas/garrisons. Air
Staff roles and responsibilities (e.g., Deputy Chief of Staff of the Air Force for
Manpower, Personnel, and Services (AF/A1), etc.) may also apply to the equivalent Office of
the Chief of Space Operations (Space Staff) position or office (e.g., Deputy Chief of Staff of
the Space Force for Manpower, Personnel, and Services (SF/S1), etc.), as deemed appropriate.
Ensure all records generated as a result of processes prescribed in this publication adhere to AFI
33-322, Records Management and Information Governance Program, and are disposed in
accordance with the Air Force Records Disposition Schedule, which is located in the Air Force
Records Information Management System. Refer recommended changes and questions about
this publication to the office of primary responsibility (OPR) using the DAF Form 847,
Recommendation for Change of Publication; route DAF Forms 847 from the field through
the appropriate functional chain of command. This publication may be supplemented at any
level, but all supplements must be routed to the OPR of
