This is a good idea. The summary of the Rule, proposed in the Federal Register (here) on December 21st,  states:

The Federal Motor Carrier Safety Administration (FMCSA) proposes to restrict the use of hand-held mobile telephones, including hand-held cell phones, by drivers of commercial motor vehicles (CMVs) while operating in interstate commerce. The Agency proposes new driver disqualification sanctions for interstate drivers of CMVs who fail to comply with this Federal restriction and new driver disqualification sanctions for commercial driver’s license (CDL) holders who have multiple convictions for violating a State or local law or ordinance on motor vehicle traffic control that restricts the use of hand-held mobile telephones. Additionally, interstate motor carriers would be prohibited from requiring or allowing drivers of CMVs to engage in the use of a hand-held mobile telephone while operating in interstate commerce. This rulemaking would improve safety on the Nation’s highways by reducing the prevalence of distracted driving-related crashes, fatalities, and injuries involving drivers of CMVs.Show citation box