To receive your Oregon Traffic Control Supervisor (TCS) certification, you must submit verification of 2000 hours of work zone experience.Documentation must be submitted in the form of 2 signed letters (or 1 letter with 2 signatures), or via our online verification form.Who can submit the letter(s)? Letter(s) 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? The letter(s) must include:

• A brief history of the candidate’s work experience (see below for acceptable work zone experience)
• Project(s) they have worked on
• Approximate number of cumulative hours of work as a Flagger/work zone Worker

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

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

The required 2000 hours of work zone experience may include work in the following areas:

• Experience as a construction inspector, including inspection of traffic control
• Traffic control work on a survey crew
• Designing or reviewing traffic control plans
• Other specific traffic control experience (set-up and take-down)
• Flagging experience