Safety and work practicesQuestion 270 of 1506

How long must an employer keep a written guarantee of isolation after the work is complete?

  1. One year
  2. 30 days
  3. 90 days
  4. Five years
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Correct answer: One year

The guarantee and records are kept for one year at the place of business nearest the work place.

Source: Canada Occupational Health and Safety Regulations (SOR/86-304), Canada Occupational Health and Safety Regulations (SOR/86-304), Part VIII: Electrical Safety

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Questions last reviewed: 18 October 2026