It is what they use in the NOLA area for a Inspection Sticker because they are "Special People".
Actually, it seems to be because New Orleans was forward thinking and ahead of its time. Bangswitch may be right in that a check of the brakes was the main focus of the inspection process in New Orleans at a time before there was a statewide law regarding inspections.
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Louisiana State Police spokesman Lt. Doug Cain responds in an email: *In the early 1960s, Louisiana saw a need for an inspection program which would ensure vehicles driven on state highways and roads are safe.
Prior to the new law, Kenner, Westwego and New Orleans had an inspection program in place.
In New Orleans, the inspection consisted of the vehicle being driven onto a metal platform and the driver applying the brakes.
The brake machine would measure the effectiveness of the brakes on the vehicle.
The inspection also consisted of checking the proper aim of the headlights. Since the main emphasis was on the brakes, the inspection sticker was known as a brake tag."
https://web.archive.org/web/2011042...VOCATE-Inspection-stickers-or-brake-tags.html