IMPORTANT NOTICE:
Tennessee 811's notification buffer will be reduced effective October 1, 2026.
Learn what this means for ticket notifications.
Positive Response Information
In accordance with the Underground Utility Damage Prevention Act (65-31-108 (b)), all member utilities are required to notify Tennessee 811 that they have marked the approximate location of underground facilities or that the member has no underground facilities in the proposed area of excavation via Positive Response.
If you are using Positive Response to search the status of a ticket, no login or account is required.
List of Response Codes
View a complete list of Positive Response codes and their descriptions.
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Ticket Types and
Notice Required
Review the different ticket types and the notice requirements for each.
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Positive Response Tutorials (for Member Utilities)
Positive Response Browser Tutorial
Step-by-step instructions for submitting and managing Positive Response using the browser.
Uniform Color Code
The uniform color code is used for marking excavation sites and underground facilities in conflict with an excavation. Underground facilities may be marked on the ground in either paint, stakes, or flags.