Massachusetts is in the process of putting a law through to ban talking/texting on your cell phone while you drive. But, while you are using a fleet vehicle you MAY NOT talk and drive no matter what the law states. If you are caught talking/texting while driving a college vehicle, you will lose your driving privileges.
If you want to check out the individual laws that are in your state so you know what is going on while you are in your personal vehicle, check out Cellphone Laws.
Just keep in mind, even though it may not be a law in your hometown, it is a distraction to talk or text while driving your vehicle. It can be a hazardous condition for those around you while you take your eyes off the road for a second. You never know what you could come across while driving without a sufficient reaction time or even if your car drifts into the on-coming traffic for a second, it can be disastrous.