Seattle Fire Department will introduce encrypted radio communications for selected tactical channels beginning in Quarter 2 of 2026.
As reported by Fireline Seattle, this change is intended to protect sensitive information, including patient medical data and building access codes, from public transmission.
The decision follows the department’s transition to a new countywide digital radio system known as PSERN, which supports encrypted channels for police, fire, and EMS units across King County.
According to Fireline Seattle, the department will continue to broadcast dispatch information on public channels. However, communications involving health, security access, and scenes involving violence will be moved to encrypted frequencies.
SFD stated that public and media access to encrypted transmissions remains possible through the City of Seattle’s public disclosure request process.
Seattle Fire Department personnel often transmit medical data, such as injury descriptions and vital signs, over radio while en route to hospitals.
According to Fireline Seattle, this information qualifies as protected health information under the Health Insurance Portability and Accountability Act (HIPAA).
The department also noted that tactical channels may include key codes and access details needed during emergency building entry.
SFD explained that keeping these communications private will help safeguard public privacy and prevent misuse of sensitive data.
Encrypted transmissions will also include communications during incidents involving violence.
These may include assaults, shootings, or stabbings, where operational details could endanger first responders or community members if intercepted.
The implementation of encrypted tactical communications is supported by King County’s adoption of the Puget Sound Emergency Radio Network (PSERN).
Fireline Seattle reported that this system provides enhanced coverage, capacity, and security compared to legacy analog systems.
According to SFD, the PSERN network will allow agencies throughout the county, including police, fire, and EMS, to coordinate with improved reliability.
The department stated that this infrastructure made encryption of selected radio channels technically feasible and operationally practical.
PSERN is designed to ensure continued interoperability between agencies while maintaining secure internal communications.
Seattle Fire confirmed that encryption will not apply to all radio traffic.
According to Fireline Seattle, dispatch channels will continue to be available for public monitoring through scanners and applications.
These include radio traffic announcing where and when emergencies occur.
Only channels that transmit private or tactical information will be encrypted.
The department explained that this approach balances the need for transparency with legal obligations and responder safety.
Seattle Fire emphasized its ongoing commitment to public information access during emergency response.
As reported by Fireline Seattle, real-time incident data can still be accessed through the City of Seattle’s 911 call log.
The department’s social media channels and Fireline blog also provide updates and summaries of major incidents.
Additionally, the PulsePoint app allows the public to receive alerts about nearby emergency responses.
Journalists can continue to contact SFD’s public information officer for inquiries during active events.
Seattle Fire noted that encrypted transmissions will still be available through official public records channels.
According to Fireline Seattle, members of the public and media can request specific recordings using the City of Seattle’s online disclosure portal.
This ensures compliance with public access laws while maintaining immediate security for tactical communications.
The department clarified that encryption does not override the public’s right to information, but instead changes how sensitive content is managed in real time.
The records process remains open to all requesters in accordance with city regulations.
Seattle Fire Department will begin encrypting tactical radio communications in Quarter 2 of 2026.
The department confirmed that this change will limit access to private medical data, security codes, and violence-related tactical updates.
Dispatch audio will remain public.
The upgrade is enabled by the countywide transition to the PSERN digital radio system.
SFD stated that encryption is needed to comply with HIPAA and enhance responder safety.
The department will encrypt channels used for health data, access codes, and incidents involving violence.
Public and media can still access incident updates via social media, online logs, and the PulsePoint app.
Encrypted communications may be requested through public disclosure filings.
Seattle Fire emphasized that the public’s legal right to information is unchanged.
