The provisions of section 510 of the International Fire Code (IFC), Emergency Responder Radio Coverage,
addresses the concern of responder radios operating in a large structure once constructed. Building construction
materials can and do absorb or block the radio frequency energy, preventing critical messages from being broadcast.
This may prevent an injured or disoriented emergency responder from receiving the needed assistance due to
communications being lost with other responders.
IFC began to address these provision in the 2009ed. and continued through current codes. With the most recent
adoption of the 2018ed. Harris County amended the code to address the needs of first responders in Harris County.