Topic
Ground Disturbance & Excavation Training
Online Ground Disturbance 101 and 201 for workers, planners and supervisors in Alberta and BC, plus excavation and trench safety. Study at your own pace and print your certificate when you pass.
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Who needs ground disturbance training
Under Alberta's OHS Code, ground disturbance is any work that disturbs or displaces soil. Only a few small jobs are exempt, such as hand digging no deeper than 300 mm that doesn't permanently remove cover over a buried facility. Before digging starts, the employer must ask the facility owner to locate and mark buried facilities.
The 101 and 201 levels come from training standards set by Utility Safety Partners (USP). USP describes 101 as the standard for workers who take part in ground disturbance under supervision, and 201 for people who want to become ground disturbance supervisors. It keeps separate 201 standards for Alberta, BC and Manitoba.
- Alberta: workers in an excavation more than 1.5 m deep, and closer to the wall than its depth, must be protected from cave-ins by cutting back the walls, a temporary protective structure, or both.
- British Columbia: the location of underground utilities must be accurately determined before excavating with powered equipment, and the sides must be sloped or supported before anyone enters an excavation over 1.2 m (4 ft) deep.
Which course do you need?
- Operator, labourer or worker who won't plan or supervise: Ground Disturbance 101, about 75 minutes. Endorsed by USP.
- Planner, supervisor or anyone who plans ground disturbance in Alberta: Ground Disturbance 201, about 6 hours. Endorsed by USP. Read our GD 201 course overview for the module list.
- The same role in BC: Ground Disturbance 201 (BC), about 6 hours. Endorsed by the BC Common Ground Alliance.
- Already hold a 201 for one province from Astec Safety Inc.: the AB Add-on or BC Add-on, about 45 minutes each.
- Digging, trenching and shoring: Safe Excavation, about 2 hours, covers soil testing, sloping and benching, protective structures, access and crossing ramps. Excavation and Trench Safety - CAN, about 60 minutes, covers Canadian legislation, the competent person's role, soil classification and the warning signs of trench failure.
Before you buy
- If your employer or client names a level or province, take that course.
- The add-ons only work with a currently valid 201 issued through Astec Safety Inc. Otherwise, take the full 201 for that province.
- Training doesn't replace a locate request. In Alberta, request locates from USP through Click Before You Dig. In BC, use BC 1 Call.
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Frequently asked questions
What is the difference between GD 101 and GD 201?
GD 101 takes about 75 minutes and is for workers who won't plan or supervise the work. GD 201 takes about 6 hours and covers planning, approvals, permits and onsite supervision.
Is online Ground Disturbance 201 the same as the classroom course?
The course record says it has the same content and exam criteria as a classroom course endorsed to the USP Ground Disturbance 201 Standard. You need 80% on the final exam and get three attempts.
How long is a ground disturbance certificate valid?
GD 101, GD 201 and GD 201 (BC) certificates are valid for 3 years from the completion date shown. An add-on certificate expires on the same date as the 201 it builds on.
Do I need a separate 201 to work in BC?
USP keeps a separate 201 standard for each province. Take Ground Disturbance 201 (BC), or the BC Add-on if your Alberta 201 came through Astec Safety Inc.
Sources for this page
- search-ohs-laws.alberta.ca/legislation/occupational-health-and-safety-code/part-32-excavating-and-tunnelling/
- worksafebc.com/en/law-policy/occupational-health-safety/searchable-ohs-regulation/ohs-regulation/part-20-construction-excavation-and-demolition
- utilitysafety.ca/committees/training-standards
- utilitysafety.ca/wheres-the-line/click-before-you-dig/
- bc1c.ca/





