Research coverage is not legal approval. Evidence methods, partial coverage and unresolved reviews are shown below. Follow current official instructions for the job.
811 centers
Evidence coverage: supported — evidence collected; independent review is shown per source.
Independently read center, response, law-resource and2026 CDLE review. Response requires owner posting/supporting documentation and excavator renotification for missing response. Law-resource page preserves Home Rule city safety-commission authority; do not imply statewide commission exclusivity.
Effective date
Not established
Evidence
Reviewed supporting content: Colorado 811 provides separate resources for professional excavators, residential digging and utility owners.
Limitations
Independent review pending; links and program content may change.
Link check
baseline
Law
Evidence coverage: partial — incomplete; consult the publisher for remaining details.
Independently read center, response, law-resource and2026 CDLE review. Response requires owner posting/supporting documentation and excavator renotification for missing response. Law-resource page preserves Home Rule city safety-commission authority; do not imply statewide commission exclusivity.
Effective date
Not established
Evidence
Reviewed supporting content: The state resources page explains the role of the Colorado Underground Damage Prevention Safety Commission and provides law resources.
Limitations
Independent review pending; links and program content may change.
Link check
baseline
Ticket submission
Evidence coverage: supported — evidence collected; independent review is shown per source.
Independently read center, response, law-resource and2026 CDLE review. Response requires owner posting/supporting documentation and excavator renotification for missing response. Law-resource page preserves Home Rule city safety-commission authority; do not imply statewide commission exclusivity.
Effective date
Not established
Evidence
Reviewed supporting content: Colorado 811 explains required operator responses, Exactix response access and follow-up when responses are missing.
Limitations
Independent review pending; links and program content may change.
Link check
baseline
Enforcement
Evidence coverage: partial — incomplete; consult the publisher for remaining details.
Independently read center, response, law-resource and2026 CDLE review. Response requires owner posting/supporting documentation and excavator renotification for missing response. Law-resource page preserves Home Rule city safety-commission authority; do not imply statewide commission exclusivity.
Effective date
Not established
Evidence
Reviewed supporting content: The official annual review describes commission final determinations and damage prevention training.
Limitations
Independent review pending; links and program content may change.
Link check
baseline
Training
Evidence coverage: supported — evidence collected; independent review is shown per source.