Remind drivers as they are backing in to chock their wheels before loading or unloading.
Backwards sign can be read through the rearview mirror to remind drivers as they back in to chock wheelsLoading and unloading can cause trucks to roll, prevent this by chocking wheelsTraditional OSHA-style signs, tags and labels are the most widely recognized design format in the industryNotice header indicates information considered to be important but not hazard-related