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Effective November 28, 2008 - all workers within the right of way who are exposed either to traffic (vehicles using the highway for purposes of travel) or to construction equipment within the work area shall wear high-visibility safety apparel intended to provide conspicuity during both daytime and nighttime usage, and meeting the Performance Class 2 or 3 requirements of the ANSI/ISEA 107-2004 publication entitled "American National Standard for High-Visibility Safety Apparel and Headwear". This applies to all projects subject to the provisions of the SDDOT Standard Specifications and all other work performed along federal-aid highways. The safety apparel shall be of fluorescent red, fluorescent orange-red, or fluorescent yellow-green and include reflectorized material as specified in the ANSI/ISEA publication. Items which comply with the requirements should be noted as such on the garment tags. The link below is the rule. The files illustrate the requirements of the various garment classes.

Federal Registry →

The South Dakota Department of Transportation has adopted the 2009 Edition of the Manual on Uniform Traffic Control Devices (MUTCD) as the official manual for traffic control.

MUTCD →