"Arizona is the latest state trying to phase out old-fashioned metal license plates in favor of digital ones.
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............ The technology will automatically register the vehicle with digital decals and can personalize the plate with different digital designs........
'It works off of the cell phone network, so it’s constantly refreshing information as you’re in an area of cell phone service,' said Arizona Department of Transpiration spokesman Doug Nick. 'If you happen to get out of an area of cell phone service, it will default to the standard driver’s license plate, so it never goes dark.'" foxnews.com/tech/digital-license-plates-being-offered-as-option-for-arizona-drivers [foxnews.com]