All motor vehicle dealers and power-sports dealers must post a clear, legible sign on their principal place of business if:

The requirement for all motor vehicle dealers and power-sports dealers to post a clear, legible sign at their principal place of business is specifically tied to their hours of operation. If they are open less than 40 hours a week, it's essential for customers to be informed about their availability. This sign serves to facilitate communication with potential customers, ensuring they are aware of when they can visit the dealership. By making it clear that they are operating less than the standard threshold of hours, it helps manage customer expectations and avoid misunderstandings regarding accessibility.

A dealership being open more than 40 hours a week does not necessitate the same level of signage, as customers will generally expect greater availability. The number of branches a dealer has or the price points of vehicles sold do not influence this specific signage requirement, which is focused directly on operational hours. Therefore, the need for a clear and legible sign arises primarily from the context of limited operational hours, reinforcing the importance of transparency in business practices.