Under New Hampshire law and the law of most states, governmental units are immune from civil liability for certain governmental functions. However, when it comes to the operation of a motor vehicle, employees of government units, including the state, cities and towns, can be held liable just like any other citizen. Also, while snow plows are certainly entitled to a certain level of deference from other drivers since they are doing difficult jobs during difficult weather conditions, by the same token plow operators must use reasonable care in the performance of their duties. Therefore, the bottom line is that if a motorist is injured in an accident caused by the negligence of the operator of a snow plow, they can recover for their injuries. Quite often, government units purchase special liablity insurance specifically for their fleets of vehicles including plows. So, if you are injured through the fault of a state or city vehicle, you should contact a personal injury attorney to pursue your rights under the law.