In Canada, 811 is not the national call-before-you-dig number. Specific information for each one call center is included below. In addition, you can visit the Canadian site clickbeforeyoudig.com for additional information and direct links.
Explore damage prevention information, local contacts and rules for safe digging in Alberta.
M – F 0600-2000 Emergency 24 / 7
4242 – 7 St SE Suite 104
Calgary AB T2G 2Y8
3 full working days
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in British Columbia.
3 working days excluding Saturday, Sunday & Holidays Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
Explore damage prevention information, local contacts and rules for safe digging in Manitoba.
Explore damage prevention information, local contacts and rules for safe digging in New Brunswick.
24 / 7
1600 Herni-Bourassa W. Suite 340
Montreal QC H3M 3E2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in Newfoundland.
24 / 7
1600 Herni-Bourassa W. Suite 340
Montreal QC H3M 3E2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in Nova Scotia.
24 / 7
1600 Herni-Bourassa W. Suite 340
Montreal QC H3M 3E2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in Ontario.
Explore damage prevention information, local contacts and rules for safe digging in Prince Edward Island.
24 / 7
1600 Herni-Bourassa W. Suite 340
Montreal QC H3M 3E2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in Quebec.
24 / 7
1600 Herni-Bourassa W. Suite 340
Montreal QC H3M 3E2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
Explore damage prevention information, local contacts and rules for safe digging in Saskatchewan.
M – F 0800 – 1630
Emergency requests are available 24/7 by calling 1-866-828-4888.
PO Box 33075 Cathedral PO
Regina, SK S4T7X2
72 hours (3 working days)
Number of days in advance of a digging project that you need to notify the one call center of your intent to dig.
30 calendar days
Defines the period of time the facility marks (paint, flags, stakes, etc.) are valid according to state law or practice.
