It’s referring to phone operation. Drivers are mandated to use a hands-free system like a headset or car speaker.
That’s what I was wondering, and hoping. Otherwise what state (or province?) isn’t already enforcing distracted driving rules?
I-464 is entirely in Virginia (I don’t know what the of shields mean to look them up.
Virginia brought in hands free 1 Jan 2021, so this photo could be 31 Dec 2020, but I don’t think Virginia is warm enough to dress like that in Jan.
Edit: there are a fucking lot of states without hands free laws - https://en.wikipedia.org/wiki/Restrictions_on_cell_phone_use_while_driving_in_the_United_States