How to become a flagman?

To become a flagman, earn a high school diploma or GED certificate. There are no additional academic qualifications needed for this career, but taking a safety training course can help you improve your resume. Most employers will provide onsite flagger training, helping you hone the necessary traffic control skills and techniques. Increase your professional profile by earning a certification from the American Traffic Safety Services Association (ATSSA). You can become certified as a flagger or traffic control technician. To qualify for either certificate, you must have experience in the field.