Construction Zone Traffic Control Contractors License (C-31)

The construction zone traffic control contractors license will allow you to prepare or remove lane closures, flagging, or traffic diversions, utilize portable devices, such as cones, delineators, barricades, sign stands, flashing beacons, flashing arrow trailers, and changeable message signs, on roadways, including, but not limited to, public streets, highways, or any public conveyance.

Before you can apply for your construction zone traffic control contractors license, you must meet the following experience requirements:

Every applicant has to pass the Law & Business exam and the Trade exam before the license is issued.

Not sure which one to apply for? Compare all CSLB classifications before you choose yours.

If you want a more detailed walkthrough, read our guide on how to get your C-31 traffic control contractors license.

Don't have 4 years of construction zone traffic control experience?
A college degree can be substituted for up to three years of that experience.

In order to obtain your construction zone traffic control contractors license, you are required to pass the Trade examination as well as the Law & Business exam.

*Even though you can apply for a construction zone traffic control contractors license when you are 18 years old, it is recommended that you be at least 23 years old due to experience requirement.

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