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ALERT LA COUNTY system provides emergency notification

January 2, 2018

Los Angeles County has an ALERT LA COUNTY mass notification system to provide advisories of emergencies. All Los Angeles County landlines are in the system, and the database is updated monthly. Cerritos residents and business owners can add a cell phone and/or e-mail address to the system through

The ALERT LA COUNTY system is designed to notify residents and businesses by phone, text and e-mail of emergencies in their area. Recorded and written alerts provide information on the nature of the emergency and necessary actions, such as evacuations or shelter-in-place. Use of the system for emergencies in Cerritos can be requested by incident commanders at the Cerritos Sheriff's Station or at local fire departments.

In situations involving a barricaded suspect, hostages or crimes in progress, the system notifies surrounding residences and excludes the single residence where the event is taking place. The TTY/TDD compatible system uses the 911 database and GIS mapping technologies to quickly target and effectively disseminate emergency notification calls to a precise geographic area. There is no charge to the City to use the system.

The Los Angeles County Sheriff's Emergency Operations Bureau and the Sheriff's Communications Center Radio Room Operation jointly serve as system coordinators and oversee the operation of ALERT LA COUNTY.

ALERT LA COUNTY is designed to leave a message if the call is picked up by an answering machine. If the number is busy or does not answer, the system continues to dial the number until contact is made.

For more information, visit


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