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New Course: National Flagger Certification

Brit Heller Brit Heller

HeatSpring has launched a new National Flagger Certification course, part of the HeatSpring CORE: Comprehensive Construction Trades curriculum, designed to prepare flaggers for one of the most high-stakes roles on any job site: standing between moving traffic and the crew working behind them.

Work zones are among the most dangerous places to work in the country. Drivers are often distracted, impatient, or moving too fast, while crews work just feet from live traffic. The flagger’s job is to bring order to that chaos, and this course is built to make sure every flagger understands exactly how to do that safely. 

What our course covers

The course walks through everything a certified flagger needs to know, grounded in OSHA 1926.201(a) and MUTCD Part 6:

  • Legal authority and qualifications – where a flagger’s authority actually comes from, and who qualifies to hold it, including the age, training, and fitness requirements and the five core abilities defined in MUTCD 6D.01
  • Work zone anatomy – the four areas of a temporary traffic control zone (advance warning, transition, activity, and termination), plus taper types and sign-spacing distances
  • High-visibility apparel – the ANSI/ISEA 107 standard, the difference between Class 2 and Class 3 garments, and a real walkthrough of what a compliant vest looks like versus one that’s soiled, cracked, or sun-faded
  • Tools of the trade – the STOP/SLOW paddle, flag, and flashlight, their required dimensions, and when each one is used
  • Core hand signals – the exact body, paddle, and free-arm positions for stop, proceed, and slow, demonstrated in detail
  • Flagger positioning – how sight distance and posted speed determine where a flagger stands, and why a planned escape route is non-negotiable
  • One-lane, two-way traffic control – how flaggers coordinate to move both directions of traffic safely through a single open lane, including the five recognized control methods
  • Situational awareness and wellness – staying alert to hostile drivers, changing conditions, and emergencies on-site, plus the fatigue and heat risks that come with the job

Flagging is serious work

A flagger is doing so much more than just holding a sign. Every crew member working near the road, just feet from live traffic, is counting on that flagger to make the right call, every time. One missed signal or one moment on autopilot can be the difference between a crew that goes home safe and one that doesn’t.

That’s why we built this course to instill the mindset a flagger needs before they ever pick up a paddle: this is a role with real responsibility riding on it and no room for cutting corners. Taking it seriously is what protects the people standing closest to the danger.

Learners who complete the course and pass the final exam earn a certificate of completion for the knowledge-based instruction. Depending on state and employer requirements, some flaggers may also need a hands-on skills demonstration before they’re fully cleared to flag, so we recommend checking your state’s specific requirements before relying on the certificate alone.

Enroll in our National Flagger Certification course today!

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Brit Heller
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Brit Heller

Director of Program Management @ HeatSpring. Brit holds two NABCEP certifications - Photovoltaic Installation Professional (PVIP) and Photovoltaic Technical Sales (PVTS). When she isn’t immersed in training, Brit is a budding regenerative farmer just outside of Atlanta where she is developing a 17-acre farm rooted in permaculture principles. She can be found building soil health, cultivating edible & medicinal plants, caring for her animals or building functional art.

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