The National Interoperability Field Operations Guide (NIFOG) is
a collection of technical reference material for radio technicians
responsible for radios that will be used in disaster response
applications. The NIFOG includes information from the National
Interoperability Frequency Guide (NIFG), the instructions for use of the
NIFG, and other reference material; formatted as a pocket-sized guide
for radio technicians to carry with them.