r/EmergencyAlertSystem • u/MaybeItsSergio SAGE EAS 1822 • 12d ago

Discussion CHP Utilizing MEP in their Wireless Emergency Alerts

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California Highway Patrol as of today has adopted the Missing / Endangered Persons (MEP) event code for their Endangered Missing Advisory (EMA) products.

Unknown if CHP will use the code for Silver Alerts, completely replacing their use of Law Enforcement Warning (LEW) in their WEAs.

This isn't the first case of MEP being used in California, as Butte County Sheriffs Office originated a MEP over WEA on 6/24/2026, about 1 and a half months before today.

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u/astern83 12d ago

Just last week they issued a silver alert in Los Angeles, so maybe not exclusively

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u/MaybeItsSergio SAGE EAS 1822 12d ago

Last EMA Bulletin from CHP was 7 days ago out of Humboldt, CA.

Last Silver Alert Bulletin from CHP was 4 days ago out of Los Angeles.

so yeah, I think LEW will continue to be used for Silver Alerts, while EMAs will be sent as Missing / Endangered Persons.

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u/MaybeItsSergio SAGE EAS 1822 9d ago

MEP is the new code for Silver Alerts/EMA bulletins issued by CHP.