Page 59 of the Rice Signs 2017 Traffic Safety Catalog covers Informational Work Zone Signs, Stop/Slow Paddles, and Safety Vests. Informational Work Zone Signs are non-warning signs that communicate work-zone status, distance, or driver compliance: G20-1 Road Work Next XX Miles, G20-2 End Road Work, G20-4 informational variant, R16-3 Headlights Required In Work Zone, MOT-14-04 maintenance-of-traffic informational sign, plus W21-4, W22-2 / W22-3 Blasting Zone, and W23-1 Slow Traffic Ahead. Stop/Slow Paddles are handheld signs used by flaggers and traffic-control supervisors: S-SL is the standard 24 inch two-sided paddle (Stop on one side, Slow on the other) and S-SLH is the lighted handheld variant with LED illumination for night use. Safety Vests come in three ANSI-rated styles: V30, V155, and V1300, each with high-visibility yellow-green or orange backgrounds and reflective stripes for compliance with the federal high-visibility apparel standard for roadway workers.