Flagger training and certification requirements

From Mississippi Department of Transportation (MDOT) Standard Specifications:
“Flaggers shall be provided as necessary to handle traffic in accordance with the contract documents and latest edition of the MUTCD. Flaggers shall have proof of certification and a valid identification available while performing flagging duties. Failure to provide a certified flagger or produce evidence of certification shall be reason for the Engineer to suspend all work associated with the flagging operation. Flagger certification can be obtained by one of the following methods:

a) American Traffic Safety Services Association ( ATSSA),
b) Construction industry association flagger training recognized by the Department, or
c) Flagger training conducted by the Department.

Re-certification as a flagger will be required every four (4) years.“