Public Safety DAS / ERRCS systems must be tested to confirm in-building radio coverage for first responders, as required by local fire marshals and AHJs (Authority Having Jurisdiction). A certified ERRCS provider conducts on-site testing using specialized radio frequency equipment to measure signal strength throughout critical areas such as stairwells, elevators, basements, parking garages, and other life-safety zones. If an amplification system is installed, Bi-Directional Amplifiers (BDAs) and Distributed Antenna Systems (DAS) components are verified to ensure they are functioning correctly and delivering the required coverage levels.

Following testing, a compliance report is generated and submitted to the local AHJ, fire marshal, or designated public safety authority. In many jurisdictions, ERRCS systems must be re-certified annually or bi-annually, and fire inspectors may check system functionality during routine building safety inspections. Proper documentation, validation of alarms, battery backup testing, and system verification help ensure ongoing code compliance and reliable emergency radio performance when it matters most.