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Mapping your underground network and Annual Validation

Ontario One Call depends entirely on the infrastructure owner (member) for the accuracy and up-to-date status of the plant location information. Because the coverage identified by a particular member is driven completely by the members themselves, all member companies are required to validate their existing Ontario One Call annually in a process called “Annual Validation”. The member will be contacted by a representative from Ontario One Call requesting validation for the given calendar year and will be provided a deadline by which to do so. Accurate mapping is the sole responsibility of the member.

Annual validation is critical for members. If a request for locates occurs at a dig site where a member has the infrastructure but has not provided maps the member will not be notified. This is not only non-compliant, but it puts infrastructure and the person digging at risk.