What do the numbers on a safety insert tab indicate?

The numbers on a safety inspection insert tab indicate the expiration date of the inspection sticker. This date is crucial as it informs vehicle owners and law enforcement of the vehicle's compliance with state inspection requirements. By knowing the expiration date, vehicle owners can ensure that they do not operate their vehicle past the legal inspection period, which is essential for maintaining safety and adhering to Pennsylvania regulations.

The other options do not accurately reflect the purpose of the insert tab. The date of vehicle manufacturing is not relevant to the inspection sticker or its insert tab. Additionally, the total number of inspections performed is not tracked in this manner, and the weight classification of the vehicle is a separate specification unrelated to the inspection status. Thus, the significance of the insert tab is solely focused on the expiration of the inspection sticker.