About

Highway work zone with traffic signs and construction equipment

About MUTCD Guide

Welcome to MUTCD Guide — a free educational resource created by Staci Cole to help traffic engineers, road departments, sign companies, contractors, and anyone who works with traffic control devices understand the Manual on Uniform Traffic Control Devices.

Meet Staci

Staci Cole is the creator, designer, and maintainer of mutcd.info. Through her work with Reflective Inc. — a company that manufactures and sells retroreflective tape and sheeting used on traffic signs, work zones, and vehicles — Staci has spent years working directly with the MUTCD standards that govern how these products are used on public roads.

She built mutcd.info because the MUTCD is a critical document that affects public safety, yet it can be difficult to navigate and interpret. Whether you’re a state DOT engineer looking up sign retroreflectivity requirements, a contractor setting up a work zone, or a city planner designing school zone signage, this site is designed to help you find what you need quickly.

Staci continues to maintain and update the site as the FHWA publishes new editions, interim approvals, and official interpretations of the MUTCD.

What This Site Covers

  • All 10 Parts of the MUTCD — Signs, markings, signals, work zones, school areas, railroad crossings, bicycle facilities, and more
  • Compliance Dates — When agencies must meet updated standards for sign retroreflectivity, sizes, and placement
  • Retroreflectivity Standards — Minimum maintained retroreflectivity levels for signs per ASTM D4956 sheeting types
  • 11th Edition Updates — What changed in the 2023 MUTCD including new Part 10 for connected/automated vehicles
  • AI-Powered Assistant — Our MUTCD Assistant answers your questions instantly with references to specific MUTCD sections

Sponsored By

MUTCD Guide is proudly sponsored by Reflective Inc. — The Visibility Company. Based in Pensacola, Florida, Reflective Inc. has been selling retroreflective tape, sign sheeting, and safety visibility products since 1998. Their products are used on traffic signs, work zone devices, emergency vehicles, and commercial trucks across the country. Shop at tapefinder.com.

For the official MUTCD full text, visit the FHWA at mutcd.fhwa.dot.gov. Have questions? Use the AI assistant on our homepage.

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