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A flagger is often the only thing standing between a moving car and a work crew. It is a job that looks simple and is not: it takes training, focus and judgment, and the rules are strict. When a paving, utility or tree crew needs flaggers on short notice, staffing is a practical way to cover the gap. Here is how to do it right.
What flaggers do
Flaggers control traffic through or around a temporary work zone. On a typical two-lane road with one lane closed, a flagger at each end takes turns stopping and releasing traffic, coordinating by radio or line of sight. Flaggers also:
- Stop traffic for trucks and equipment entering or leaving the work area
- Guide pedestrians and cyclists safely past the work
- Watch for hazards and warn the crew of an errant vehicle
- Keep their station, equipment and signs set up as the plan requires
It is repetitive work that demands constant attention. A good flagger is calm, visible and decisive.
The rules: MUTCD and state certification
The federal Manual on Uniform Traffic Control Devices (MUTCD) sets the national standards for temporary traffic control, including flagging. Its flagging rules cover the STOP/SLOW paddle, hand signal methods, flagger station placement and high-visibility safety apparel. States adopt the MUTCD, sometimes with their own supplements.
Many states also require flaggers to complete an approved training course and carry a certification card, which usually has to be renewed after a set number of years. Requirements, approved courses and reciprocity between states differ, so check the state DOT's rules for each project. Some project owners and utilities set their own requirements on top.
Equipment and apparel
Settle who supplies each item before the first shift:
| Item | Notes |
|---|---|
| STOP/SLOW paddle | The MUTCD sets the standard for paddle design; many contractors supply paddles with the traffic control package |
| High-visibility apparel | Must meet the ANSI/ISEA 107 performance class required by the MUTCD and the traffic control plan; nights call for higher visibility |
| Hard hat | Often required to be high-visibility colored; night work may require retroreflective material |
| Radios | Essential when flaggers cannot see each other |
| Lighting | Flagger stations at night must be illuminated |
| Signs and cones | Usually part of the traffic control setup, not the flagger's personal kit |
Flaggers typically bring their own safety-toe boots and weather gear. Tell the agency about any other items your site expects them to bring.
Planning flagger coverage
Flagger orders go wrong in predictable ways. Plan around them:
- Count stations, not shifts. Each flagging station needs a flagger, plus relief for breaks. A single flagger cannot safely cover two ends of a closure without a proper plan.
- Plan relief. Standing in traffic for hours is tiring. Build rest breaks into the plan so attention stays sharp.
- Nights are different. Night work needs lighting, higher-visibility apparel and flaggers who are rested. Give extra notice for night orders.
- Weather changes everything. Heat, cold and rain all affect how long a flagger can stay sharp at a station.
- Early starts. Many road crews start before sunrise. Confirm the exact meeting point, which is often a yard or a staging area, not the work zone itself.
How to order flaggers that show up ready
A complete flagger order includes:
- 1The state and project so the agency sends workers with the right certification.
- 2Number of stations and shift length, including relief.
- 3Meet location and time, with a foreman's name and mobile number.
- 4Traffic control details: road type, speed, lane closure or detour, day or night.
- 5Equipment: what you supply and what the flagger should bring.
- 6Any site badging or orientation needed for utility or rail properties.
Our guide on writing a shift order has a template you can adapt.
Common flagging mistakes to avoid
Most flagging problems are not about the flagger's skill. They come from how the job was set up:
- Using any available laborer as a flagger. If your state requires certification, an uncertified worker at the paddle is a compliance problem and a safety risk. Order flaggers as flaggers.
- Stations placed where drivers cannot see them in time. Flagger stations need enough sight distance for approaching traffic to stop. Follow the traffic control plan, not convenience.
- Flaggers doubling as laborers. A flagger who turns around to help shovel is not watching traffic. Keep the roles separate.
- No way to talk. Two flaggers who cannot see each other need radios that work, with charged batteries and a backup plan.
- Phones in hand. Set a clear rule: no personal phone use while at the station.
Should flaggers also hold an OSHA-10 card? It is not a flagging certification, but many sites require it for everyone on the job, flaggers included. If yours does, put it on the order.
Back your flaggers
Flaggers need authority to do the job. Brief them on the plan, give them a way to reach the foreman immediately and make clear they can stop work or call for help when a situation looks unsafe. After the shift, tell dispatch who you want back. A repeat flagger who already knows your crew and your equipment is safer from minute one.
Crew Staffing Pros places certified flaggers as W-2 employees with workers' comp, and dispatch answers 7 days a week for early starts and night work. See construction staffing, our safety program, or request flaggers.
Put this into practice
Get a crew that shows up.
W-2 workers with workers' comp, published indicative rates and a written no-show guarantee. A live dispatcher confirms every order.
This guide is general information, not legal, tax or financial advice. Rules vary by state and change over time. Rates and pay shown are estimates; a dispatcher confirms your actual rate.