BY ORDER OF THE
SECRETARY OF THE AIR FORCE
AIR FORCE INSTRUCTION 91-108
14 MAY 2020
UNITED STATES AIR FORCES
EUROPE AND AIR FORCES AFRICA
Supplement
23 NOVEMBER 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: 16
(USAFE)
OPR: HQ USAFE-AFAFRICA/SEWN
Supersedes: AFI91-108_USAFESUP,
16 June 2015
Certified by: HQ USAFE-
AFAFRICA/SEWN
(Mr. William M. Mace)
Pages: 2
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
