Seattle Fire will keep main dispatch channels open, but will enhance encryption on radio channels used for tactical communications and sharing sensitive and private health information
SEATTLE (WA) – In Quarter 2 of 2026, the Seattle Fire Department (SFD) will enhance encryption to radios used for tactical communications among our fire personnel. Encrypting radio communications means that radio transmissions can only be heard internally by the intended audience. The primary reason SFD has chosen to encrypt radios is to protect the public’s sensitive personal and health information from being shared to a wide audience. Encryption also enhances the safety of community members and first responders.
This technology upgrade is possible because of the move to a new digital radio system in King County as part of the initiative. The new radio system allows first responders, particularly law enforcement and fire, fire and EMS, to better communicate and dispatch emergency and other government services countywide. The new PSERN radio system has improved coverage, capabilities and security versus traditional analog radio systems.
Reasons for encryption:
Fire personnel frequently transmit a patient’s vitals and details regarding their injuries over the radio to trauma and medical doctors at hospitals. This is protected health information that should not be shared broadly in part due to the Health Insurance Portability and Accountability Act (HIPAA). Additionally, information regarding door, gate and key box codes, and other access data is communicated to gain entry to buildings during emergencies.
Firefighter/EMTs and paramedics often respond to scenes where individuals are injured as a result of a violent act, such as a shooting or stabbing. Encrypting channels where information on these incidents is communicated preserves operational integrity and improves the safety of the police officers and the communities they serve. When channels remain open, they can be accessed by all individuals, including some who may be actively engaging in criminal activity or behavior.
What’s changing:
SFD’s dispatch channels, which communicate when and where incidents are occurring, will remain open for the public to hear via radio scanners. The department will encrypt channels that transmit the following:
- Private health information
- Sensitive building access data
- Tactical communications, including for Scenes of Violence responses
Committed to sharing information:
The SFD remains committed to sharing information with the public and media about significant incidents as they are unfolding. Here are ways to stay informed:
- Access real-time 911 to see a log of incidents in real-time
- View SFD’s Fireline blog to receive recaps of significant incidents
- Download the PulsePoint application
- Members of the media can email SFD’s public information officer account to request information
The right to access information:
Encryption does not change the public’s legal right to access information. Members of the public and media can file a public disclosure request via the City’s online portal to request encrypted radio communications.