BY ORDER OF THE
SECRETARY OF THE AIR FORCE
AIR FORCE INSTRUCTION 91-108
14 MAY 2020
Safety
AIR FORCE NUCLEAR WEAPONS
INTRINSIC RADIATION AND 91(B)
RADIOACTIVE MATERIAL SAFETY
PROGRAM
COMPLIANCE WITH THIS PUBLICATION IS MANDATORY
ACCESSIBILITY: Publications and forms are available on the e-Publishing website at
www.e-Publishing.af.mil for downloading or ordering.
RELEASABILITY: There are no releasability restrictions on this publication.
OPR: AFSEC/SEW
Supersedes: AFI91-108, 12 February 2015
Certified by: AFSEC/CV
(Colonel William C. Culver)
Pages: 14
This instruction implements Air Force Policy Directive (AFPD) 91-1, Nuclear Weapons and
Systems Surety. It contains guidance needed to carry out Intrinsic Radiation (INRAD) Safety
Program requirements and to ensure that routine or planned exposure of personnel to INRAD is
“as low as reasonably achievable” (ALARA) and does not exceed the maximum permissible dose.
It provides guidance on the management of both 91(b) radioactive material (RAM) associated with
current nuclear weapons maintenance operations and residual 91(b) RAM from legacy
maintenance, nuclear weapon accidents or incidents, and Air Force 91(b) reactors located in the
United States. The term “91(b)” refers to RAM covered under Section 91(b) of the Atomic Energy
Act (AEA) of 1954. It applies worldwide to all Regular Air Force, Air Force Reserve, and Air
National Guard units with a nuclear mission and personnel engaged in the maintenance, upload,
download, transport, or storage of nuclear weapons, associated RAM, or components, as well as
organizations that possess residual 91(b) RAM, excluding material covered under AFMAN 91-
110, Nuclear Safety Review and Launch Approval for Space or Missile Use of Radioactive
Material and Nuclear Systems. Refer recommended changes and questions about this publication
to the office of primary responsibility using the AF Form 847, Recommendation for Change of
Publication. Route AF Form 847s from the field through the appropriate functional chain of
command. Ensure that all records created as a result of processes prescribed in this publication are
maintained in accordance with Air Force Instruction (AFI) 33-322, Records Management and
Information Governance Program, and disposed of in accordance with the Air Force Records
Disposition Schedule located in the Air Force Records Information Management System. Send
