S.C. Code Ann. § 59-63-60: School guards required to be safely attired.

No person charged with the responsibility of assisting school children to cross streets near schools shall engage in such activity unless he is attired with some type of garment or equipment that can be clearly seen by the driver of an approaching motor vehicle. The school district official of each school district who is responsible for supervising such personnel shall be responsible for seeing that such persons within his district are furnished with the articles required by this section.