This Code does not pro­hib­it the use of flares or fus­es in con­nec­tion with the oper­a­tion of motor vehi­cles, rail­roads, or oth­er trans­porta­tion agen­cies for sig­nal pur­pos­es or illu­mi­na­tion or for use in for­est pro­tec­tion activities.