About Ontario One Call

Established in 1996, 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.

About Ontario One Call

Who We Are

Ontario One Call is a public safety administrative authority. We play a vital role in protecting the public and underground infrastructure.

Ontario One Call spreads dig safe and click before you dig messaging, provides a locate request system that streamlines communications between those who want to dig with the owners of buried infrastructure, and regulates the public locate industry.

In 2012, the Ontario Underground Infrastructure Notification System Act was passed, which stipulates that by law, anyone in the province of Ontario must contact Ontario One Call before they dig.

Though Ontario One Call does not physically mark the lines, pipes, or cables, we relay all dig information to the buried infrastructure owners so they can mark (locate) based on the request you submit. Buried infrastructure owners will then deliver locates. Locates minimize the risk of infrastructure damage, loss of service, and injury.

Why is requesting a locate and digging safely important?


Our Mission

We regulate an efficient locate system, foster industry wide collaboration, and promote
safe, timely excavation across Ontario.

Our efforts will result in a locate process that is not only safe, but efficient and timely. We will work directly with stakeholders to preemptively resolve issues and hope that they will turn to us for the necessary advice and expertise. Our proactive efforts will ensure Ontarians are well aware of the importance of safe excavation and the resources we provide to enable this.


Our Core Values

Caring. Acting with Integrity. Collaborative. Inclusive. Innovative.

We invest in the success and safety of our team, communities and the environment.​

We are dedicated, honourable and honest.

We foster partnerships and work together to build a safer Ontario.

We are a leader in inclusivity and cultivate a foundation of respect and support within our industry.

We strive for excellence with a willingness to learn, adapt and innovate.