According to the new federal regulation published in November 2006, 23 CFR Part 634: Worker Visibility, published by the Federal Highway Administration, all workers within the right-of-way of a Federal-aid Highway who are exposed either to traffic or to construction equipment within the work area
Employers can assess their worker needs by referring to Appendix B of ANSI/ISEA 107-2004 for performance class selection guidelines per work zone conditions. Visit www.safetyequipment. org/hivisstd.htm