Prohibiting the use of a mobile telephone while operating a motor vehicle in school or construction zones and providing penalties for violations thereof.

SB 324 prohibits drivers from using handheld mobile telephones while operating a vehicle in school zones (during enforced reduced speed limits) or construction zones (with workers present). Exceptions include hands-free use, emergency calls, reporting illegal activity, or when the vehicle is safely stationary. Violations will initially result only in warning citations until July 1, 2027, rather than fines. The law defines "hands-free device" and excludes certain devices like emergency communication systems or commercial radios from the prohibition.