Request A Locate

Homeowners
- - - Homeowners
      
      Whether you are a homeowner, renter, or tenant, if you are planning to dig you must submit a locate request. Click before you dig applies to every job, big or small. Whether you’re building a fence, putting in a pool, planting a tree or digging a new garden, or any other digging project you need to contact Ontario One Call.
Contractors
- - - Contractors
      
      Contacting Ontario One Call will help protect you and your project from unnecessary damages, injuries and financial penalties. We notify buried infrastructure owners that you are excavating.
Infrastructure Owners
- - - Infrastructure Owners
      
      Infrastructure Owner login links, best practices and other resources.
Dedicated Locator
- - - Dedicated Locator
      
      Take control of your project with Dedicated Locator. Learn more on how a single resource used to mark all underground infrastructure within a project area, can help your project.
Compliance and Industry Performance
- - - Compliance and Industry Performance
      
      Ontario One Call regulates public utility locating and safe digging in the Province of Ontario. File a complaint, view performance reports and find supporting resources.
About Us
- - - About Us
      
      Ontario One Call is a public safety administrative authority that acts as a communications link between buried infrastructure owners and individuals who are planning to dig in the province of Ontario.
  - - Basic Information
    - Mission and Values
    - News & Events
    - Media Relations
    - Careers
    - Glossary
    - Rebrand Resource Centre
    - Contact Us

News & Events

News & Events

Latest News

Ontario One Call and AORS Partner to Advance Safe Excavation

Ontario One Call and the Association of Ontario Road Supervisors (AORS) have signed a Memorandum of Understanding to strengthen safe excavation awareness, damage prevention education, and professional development across Ontario’s road and public works sectors. Through this partnership, Ontario One Call and AORS will work together to expand access to practical education, training, and resources that support safe and compliant
2025 ANNUAL Report

Ontario One Call’s Annual Report is now available. Read the report here.
Ontario One Call Rebrand: Stakeholder Information Session – Recording & Resources

Dear Stakeholders, Thank you for joining us for our rebrand information session, where we shared details about Ontario One Call’s upcoming brand transition and introduced our new name: Ontario Dig Authority. We appreciate your time, participation, and continued partnership as we begin this new chapter. Key Takeaways: Important Dates & Activities July – September 2026: New
Nominate a Safety Champion for the 2026 Industry Safety Awards

October 1, 2026 • Old Mill Hotel, Toronto Ontario One Call is hosting its second Industry Safety Awards, following the Annual Meeting. The awards will recognize transformative innovations and accomplishments that are building the future of underground infrastructure protection and damage prevention. Do you know someone who is going above and beyond to keep dig sites

Upcoming Events

ROW Management

October 14-15, 2026. Ajax, ON.
AORS

June 3-4, 2026. Petawawa, ON.
OACETT 2026 TECHNOLOGY TRADESHOW

May 29, 2026. Hamilton, ON.
Ontario Waterworks Association

May 4-7, 2026. Niagara Falls, ON.