MUTCD Hi-Viz Alert

According to the Manual on Uniform Traffic Control Devices, all workers within the right-of-way of any roadway open to the public is required to wear ANSI/ISEA 107-2004 Class 2 or Class 3 compliant high-visibility clothing.

Workers means people on foot whose duties place them within the right-of-way of a road open to public travel, such as construction and maintenance forces; survey crews; utility crews; emergency responders to incidents within the highway right-of-way.

Private Road Open to Public Travel are roads (including any adjacent sidewalks that generally run parallel to the road) within shopping centers, airports, sports arenas, and other similar business and/or recreation facilities that are privately owned, but where the public is allowed to travel without access restrictions.

Hi-Viz Clothing (High-Visibility Safety Apparel) is defined to mean "personal protective safety clothing that is intended to provide conspicuity during both daytime and nighttime usage, and that meets the Performance Class 2 or 3 requirements of the ANSI/ISEA 107-2004."

Here is the actual rule revision:

This rule is a phase-in for compliance on all public roads which are not Federal-Aid Highways in two years, ending on December 31, 2011.

The area where mandatory use of traffic control devices has expanded beyond Federal-Aid Highways and will now cover all roads "open to public travel," i.e. any road where you can drive a car without passing through a traffic control gate, including private property.

All workers, including emergency responders, within the right-of-way are required to wear high-visibility safety apparel that meets Performance Class 2 or Class 3 of ANSI/ISEA 107-2004, or equivalent revisions. Fire fighters and emergency responders do have the option to wear retroreflective turnout when exposed to flame, fire, heat or hazardous conditions and materials while engaged in emergency operations.

When uniformed law enforcement personnel are used to direct traffic, investigate crashes or handle lane closures, obstructed roadways or disasters; high-visibility safety apparel that meets Performance Class 2 or Class 3 of ANSI/ISEA 107-2004, or equivalent revisions, shall be worn by the law enforcement personnel.

TTC (Temporary Traffic Control)
All workers, including emergency responders, within the right-of-way who are exposed either to traffic (vehicles using the highway for purposes of travel) or work vehicles and construction equipment within the TTC zone shall wear high-visibility safety apparel that meets the Performance Class 2 or 3 requirements. (Options for fire fighters or emergency responders in hazard conditions).

FLAGGERS
For daytime and nighttime activity, flaggers shall wear high-visibility safety apparel that meets the Performance Class 2 or 3 requirements of the ANSI/ISEA107-2004 publication.

Uniform of Adult Crossing Guards Section 7D.04:
"Law enforcement officers performing school crossing supervision and adult crossing guards shall wear high-visibility retroreflective safety apparel labeled as ANSI 107-2004 standard performance for Class 2 as described in Section 6E.02." Labeling requirements may need additional clarification, however.