To register, students must hold a current, valid Washington Traffic Control Supervisor certificate issued issued by Evergreen Safety Council, Northwest Laborers Employees Training Trust or ATSSA (Washington card only). Students must also submit a copy of their current State approved flagger card. Participants that score 80% or better on the recertification exam are reissued the Washington StateTraffic Control Supervisor cards good for four years.
NOTE: There is a 6-month grace period after expiration to take the 1-day recertification. However, you are not allowed to work with an expired card.