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Washington Traffic Control Supervisor Certification

COURSE PREVIEW
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TCS certification prerequisites:

  1. A current state-approved flagger certification card
  2. Verification of 2000 hours of work zone experience

You will earn:

  • Washington Traffic Control Supervisor (TCS) Certification (Valid for 4 years) 

Other options:

  • Washington Traffic Control Technician (TCT) Certification
  • Recertification of Washington TCS/TCT

Course overview

This 3-day certification course includes presentations, exercises, and references to federal and state highway construction and traffic control standards. Participants receive a comprehensive training manual and supplemental reference materials to assist with on-the-job practical issues and performance standards.

Participants must complete the entire training course and pass the exam with a score of 80% or better to qualify and receive their certification card. Once successfully completed, certification is valid for 4 years.

Note: Recertification is a 1-day course is for individuals who currently hold a Washington State Traffic Control Supervisor (TCS) or Traffic Control Technician (TCT) certification card issued by ATSSA, Evergreen Safety Council, or the Northwest Laborers-Employers Training Trust (NWLETT).

Required prerequisites:

In order to receive your Washington Traffic Control Supervisor (TCS) Certification, you must submit documentation verifying that you meet the state requirements as outlined on this page.

If you do not meet the minimum requirements for TCS certification, you may still participate in the course, but will receive a Traffic Control Technician (TCT) certification instead. (Please let us know in advance if this is the case for you.)

Please send us your documents using this form. 

Documents overview:

To receive your TCS certification, please send us the following:

  1. A current state-approved flagger certification card. Accepted states are Idaho, Montana, Oregon, and Washington.
  2. Verification of 2000 hours of work zone experience. View details.

To receive your TCT certification, please send us the following:

  1. A current state-approved flagger certification card.

If you are recertifying, please send us the following:

  1. A current state-approved flagger certification card.
  2. A current WA TCS or TCT certification card.

Related Courses

Misplace your card?

You can request a replacement card below.

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Traffic Control Supervisor Course

Frequently Asked Questions

What documents must I submit if I am recertifying my Washington Traffic Control Supervisor (TCS) or Traffic Control Technician (TCT) certification?

To receive your Washington TCS or TCT certification card, the following documents must be submitted:

  • A current state-approved flagger certification card. Accepted states are Idaho, Montana, Oregon, and Washington.
  • A current TCS or TCT certification card.

To send us your documentation, please fill out this form

What documents must I submit for my Washington Traffic Control Technician (TCT) certification?

To receive your Washington State Traffic Control Technician certification card, you must submit a current state-approved flagger certification card. Accepted states are Idaho, Montana, Oregon, and Washington.

To send us your documentation, please fill out this form.

What documents must I submit for my Washington Traffic Control Supervisor (TCS) certification?

What documents must I submit for my Washington Traffic Control Supervisor (TCS) certification? 

To receive your Washington State Traffic Control Supervisor certification card, the following documents must be submitted:

  • A current state-approved flagger certification card. Accepted states are Idaho, Montana, Oregon, and Washington.
  • Verification of 2000 hours of work zone experience 

Verification of 2000 hours of work zone experience must be submitted as follows:

  • 2 signed letters (or 1 letter with 2 signatures)

Who can submit the letters? Letters may be submitted by anyone who can verify the knowledge and experience of the TCS candidate, including employers (past and/or present), subcontractors, DOT Inspectors, or other Traffic Control Supervisors.

What must the letter(s) include? TCS candidates may no longer have just flagging hours. The letter(s) must include a brief history and detailed description of at least TWO of the following:

  • Developing traffic control plans (TCPs) for roadway maintenance, construction, utility work, or special events
  • Reviewing TCPs for proper application and MUTCD compliance
  • Inspection of traffic control devices and TCP performance, and reporting or correcting deficiencies
  • Installing and removing traffic control devices in accordance with TCPs for lane closures on multi-lane roadways and other traffic control operations
  • Performing flagger duties

What format must the letter(s) be in? The letter(s) must:

  • be typed and on company letterhead. (If letterhead is not available, an attached company business card is acceptable).
  • provide contact information for the authors.

To send us your documentation, please fill out this form.

Washington TCS course policies & fine print

Cancellation or rescheduling:  If you need to cancel or reschedule your class, please contact our customer service team by email at registrations@esc.org a minimum of 5 business days prior to your scheduled class date. There is no charge to reschedule to a different date. If you must cancel, a $50 administrative fee will be applied.  

Late arrival or no-show: Class will begin at 8 am. Students are encouraged to arrive at least 15 minutes before the scheduled start of class in order to fill out paperwork and get checked in. At the instructor’s discretion, students arriving after the scheduled start time may not be able to attend, and rescheduling fees may apply.

Required prerequisite documentation:  This course requires each participant to submit documentation as verification that they meet the state requirements for certification. Please CLICK HERE to submit your documents online, or email them to flagger@esc.org

Is training available at a company’s facility?

Yes. Contact Evergreen Safety Council for more information.

How long is the certification valid for?

Washington and Idaho certifications are valid for four years. Oregon certification is valid for three years.

How can I register?

You can register online by visiting our registration portal, located in the top right corner of this window.

Where are the classes located?

Please visit our course calendar for a complete list of scheduled classes.

What states accept the TCS cards?

Washington only accepts a Washington State card at this time. Oregon only accepts an Oregon State card at this time.

Idaho will accept both Washington and Oregon TCS cards; however, the TCS is responsible for reviewing Idaho standards and laws.

What is the difference between a TCS and TCT?

TCS stands for Traffic Control Supervisor.

The TCS ensures that the traffic control measures shown on the approved traffic control plans are properly implemented, operating, and documented on the project. The contractor’s TCS may not be required full time on a given project, but is required to perform all duties required by the specifications. The TCS is responsible to be on the project whenever traffic control labor is being utilized, or less frequently if authorized by the engineer.


TCT is a Traffic Control Technician.

The TCT is an apprentice position, indicating an individual who has not obtained enough hours and/or experience to be a TCS but has passed the Traffic Control Supervisors Course. The TCT can perform some of the duties of the TCS under the TCS’s supervision. (Note: The TCT is not a recognized certification in Washington; Idaho offers a separate course for a TCT.)

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