working horn requirement
https://ace-wiki.win/index.php/Why_You_Should_Regularly_Check_Car_Lights_and_How_to_Do_It_Right
In many construction and industrial zones, having a working horn requirement means that any large vehicle or machinery must have a functioning horn installed and ready for use. This is a simple safety rule to warn people nearby when reversing or moving in tight spaces. For operators, it’s just part of their daily pre-trip inspection—test the horn, make sure it’s loud and clear. Without it, the whole job site could be at risk of accidents, so it’s taken pretty seriously, especially on new builds…