Field Operations Guides (FOGs)

Field Operations Guides (FOGs) are technical references for emergency communications planning and for radio technicians responsible for radios that will be used in emergency responses.

National Interoperability Field Operations Guide (NIFOG)

• National Interoperability Field Operations Guide Version 2.02 (.pdf, 4.17 MB) (2025)
  The NIFOG is a technical reference for emergency communications planning and for radio technicians responsible for radios that will be used in disaster response. The NIFOG includes rules and regulations for use of nationwide and other interoperability channels, tables of frequencies and standard channel names, and other reference material, formatted as a pocket-sized guide for radio technicians to carry with them. New content in 2.02 includes updated contact information.
• National Interoperability Field Operations Guide Fact Sheet (.pdf, 410 KB) (2025)

Programming Guides

• Programming Guide for Interoperability Radio Channels (.pdf, 97.91 KB) (2021) (*)
  This guide is intended for radio system managers and technicians responsible for designing and programming interoperability channels for public safety radios in their community.
• Programming Template for Interoperability Radio Channels (.pdf, 259.36 KB) (2021) (*)
  The template is a series Communications Resource Availability Worksheets to assist the user in effectively managing the Nationwide Interoperability Channels.

(*) Denotes Archived Material: In an effort to keep CISA.gov current, the archive contains information that may not reflect current policy or programs.