The test will take place at 3pm on Sunday, September 7.
Every 4G and 5G mobile phone and tablet across the UK will emit a loud siren-like sound and vibrate for 10 seconds, even if set to silent.
People are advised by the AA to familiarise themselves with the sound of the alert and avoid interacting with the message until they are safely stopped, with the engine switched off.
It is recommended to acknowledge the alert message only when it is safe to do so.
Drivers are reminded that it is illegal to use a hand-held device while driving.
Edmund King, AA president, said: “We support the testing of the Emergency Alerts system, which is an important tool the government uses to keep people safe in a crisis.
“On the day, drivers should simply stay calm and focus on the road.
“As always, only check your phone when you’re parked safely with the engine turned off.”
Pat McFadden, Chancellor of the Duchy of Lancaster, said: “Over 8 million people have already safely received Emergency Alerts in real life scenarios, including floods and extreme storms.
“Emergency Alerts help us deliver lifesaving advice in an emergency, which is why it’s so important we test the system, to make sure we can keep the country safe when lives are on the line.”
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Advice for those on the road is to stay calm and focused while driving.
The UK Government has conducted tests of the Emergency Alerts system in the past as part of a nationwide effort to ensure the system works effectively in real emergencies, such as extreme storms or wildfires.
More information can be found here: https://prepare.campaign.gov.uk/emergency-alerts-campaign-resources/
