NHTSA

National Highway Traffic Safety Administration (NHTSA) regulators say it's not clear which agency has the authority to regulate how drivers use mobile devices in the car.

The NHTSA can regulate "vehicle equipment," that is, that which directly controls a feature of the car. The FCC regulates mobile devices as to their use of frequencies for voice and data.

But this regulatory "doughnut hole," writes The Wall Street Journal, "reflects how much faster technology changes than the stately progress of federal rulemaking." NHTSA administrator David Strickland tells the paper, "We have more research to do."

Read The Wall Street Journal here.