Under what circumstance may a vehicle pass inspection if it does not have hazard warning lamps?

A vehicle may pass inspection without hazard warning lamps if they were not included as original equipment. This is significant because the inspection process is primarily concerned with ensuring that vehicles meet specific safety and regulatory standards based on what was originally installed by the manufacturer. If a vehicle was designed and produced without hazard warning lamps, then it is not held to the same requirements as one that was manufactured with that feature.

Including this context helps clarify that the vehicle's passing status is tied to its original design, rather than its current condition or the owner's preferences. This principle ensures that all vehicles are evaluated on a level playing field according to their intended specifications and features.