Use these resources to assist in damage prevention and to stay informed.
Ontario One Call materials are available for download and use by Ontario One Call members. Please review our Brand Standards before incorporating these materials into your artwork. Some materials can be customized with your logo.
Ontario Once Call has an obligation to protect the integrity of its brand, logo(s) and graphics. Keeping the logo consistent and within standards is paramount to building a trusted and reliable brand. Ontario One Call welcomes the use of our graphics and logos for promotional purposes, but they must remain in our standards. Please review our Brand Standards guide prior to use.
These documents have been put together to help Excavators, Utilities, and Municipalities use the Ontario One Call system more effectively.
Learn best practices on how to share locates with subcontractors, how to properly submit locates for multiple civic addresses, bore holes, vacuum excavations, and more.
Design and Planning Requests
Drawing Tools – Creating an Accurate Map Selection
How to make a request for a Bore Hole
How to make a request for a Vacuum Excavation
Multiple Civic Request – How to
New Subdivision Request – How to
Relocates: A Deeper Look
Renegotiation Best Practice
Sharing Locates with Subcontractors – How to
Verifying a Dig Location
Benefits of Improved Mapping
Compliance – Late Locate Protocol
FAQs – Frequently Asked Questions
Glossary of Terms
How to read a locate
How to Update 360 Feedback and Understanding Locate Statuses
Standardized Locate Validity
What is a Dedicated Locator?
Universal Colour Code
Emergency Locate Categorization
Locate Status Definitions
Attention Stakeholders Changes to Requests Submitted by Phone Effective March 2022, Ontario One Call will be moving […]
The voting results for the 2021 Annual General Meeting are complete. Please see the results and video recording of […]
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If you would like to file a complaint against a member (buried infrastructure owner), excavator, or Ontario One Call, and have reasonable or probable cause to believe there has been non-compliance with the Ontario Underground Infrastructure Notification System Act, 2012, its regulations or the By-laws of Ontario One Call please proceed to the online complaint form.