The Madison County Sheriff's Office is announcing the launch of a free mobile phone app that encourages people to have a plan to get home safely if they've had too much to drink.

The "Have A Plan" app operates on iPhone, Windows and Android platforms.

It includes features like the ability to preload a list of designated drivers, find a taxi via GPS and an alcohol impairment estimator.

The app was developed by STOP-DWI New York and Staples Marketing under a grant from the Governor's Traffic Safety Committee.

To download the "Have A Plan" app visit www.stopdwi.org.

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