Under 1915.93(a)(1), does this motor vehicle safety standard apply to vehicles operating on public streets and highways?
No — 1915.93(a)(1) expressly says the section does not apply to motor vehicle operation on public streets and highways. The rule only applies to motor vehicles used at worksites engaged in shipyard employment to transport employees, materials, or property. If vehicles are traveling on public roads, other federal or state motor vehicle rules and traffic laws (not this shipyard provision) will usually govern.