Cant compare any state, city or town to any other. Everyone city has didfferant ordinance governing such. For instance the city of Hartford in Ct. if you are going to have any worker or piece of equipment or a vehicle tire touching the road you MUST hire a cop. But other towns in the suberbs you can get away with a flagman from your crew. Those that pointed out checking with local PD are right on the money. Some towns also have ordinance stating that doing tree work with in X number of feet of the road you have to hire traffic control. Even if your not working in the street if its a busy road rubber neckers watching the cool tree guys can cause a traffic problem that will get you a visit from the locals.