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JULIE before you dig logo

Every Project. Every Time.

Whatever the size, scope, depth, or breadth of your excavation project, Illinois law requires you contact JULIE before you dig.

Knowledge Is Key To Staying Safe

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Positive Response

RTE

Remote Ticket Entry

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JULIE Online Courses

notification timeline

Notification Timeline

pre-marking

Pre-Marking

Remark/Extend/View

Remark/Extend/View

Damage Prevention Managers

Damage Prevention Managers

Tolerance Zone

Tolerance Zone

Contact JULIE

How To Contact JULIE

Safe Digging Starts With Pre-Marking

Identifying your excavation area helps streamline the utility marking process. So, before you break ground, physically pre-mark your job site using white paint, flags or chalk. Or, contact JULIE and provide a clear and concise verbal or written description of where you plan to dig. It’s the law!
Verbal Pre-marking Instructions
Physical Pre-marking Tips
safe digging with pre marking

Contacting JULIE Before You Dig Is Your Responsibility

When working on client projects, you—and only you, the actual individual excavating or your excavation company—can submit a locate request. This holds true for everything from planting a single tree to adding all new landscaping, from building a deck to fixing a mailbox post.
Submit a Locate Request
Contact JULIE 24/7/365
Contacting JULIE before you dig

Dig Smart: Recognize The Tolerance Zone

Locating underground utility lines is not an exact science and markings indicate only approximately where those lines are buried. Being aware of the tolerance zone is crucial to your safety. Excavate outside the tolerance zone when possible and practice extreme caution if you must dig within it.
What is the Tolerance Zone?
Tolerance Zone FAQs
Recognize Tolerance zone

Service Laterals

New state law takes effect January 1, 2026—service laterals must be locatable before you dig. Stay compliant and avoid costly strikes by learning the latest requirements and safe digging best practices from JULIE.

More About Service Laterals
Learn About the Law
JULIE Servicel Lateral
safe digging with FREE online safety training
Stay up-to-date on safe digging best practices with FREE online safety training. JULIE Essentials for Excavators courses are available any time you are.
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pre-defined tolerance zone

The tolerance zone—a pre-defined horizontal distance extending from the outer edge of  underground facility marks, to the depth of your proposed excavation—acts as a warning to proceed with caution while digging in this area.

Learn More About Tolerance Zone
JULIE REV program

REV makes it easy for you to REFRESH markings that have become indistinguishable, EXTEND an existing locate request, or VIEW a locate request from the past 6 months.

REV Functions

Avoid Penalties, Prevent Accidents And Protect Your Crews

According to Illinois law, if you’re caught digging on your job site without first having underground utility lines marked, you can face a penalty of up to $5,000 per violation. Striking a buried line can cost even more—repairs, a critical service outage, serious injury, even death. Familiarize yourself with what you need to know to stay safe when digging.
Download Excavation Safety Resource