No, not directly, but they did issue this Safety Advisory: Possession or Use of Battery-Powered Portable Electronic Smoking Devices Around, On or While Operating a Commercial Motor Vehicle (CMV) relating to the possession and use of battery-powered portable electronic smoking devices (e.g., e-cigarettes, e-cigs, e-cigars, e-pipes, e-hookahs, personal vaporizers, electronic nicotine delivery systems (ENDS). In this Safety Advisory, the FMCSA states: