https://www.qp.alberta.ca/documents/OHS/OHSCodeExplanationGuide.pdf

You know that all equipment must be used as per manufacturer's specifications. The issue you're having is that one of your pieces of equipment didn't come with any manufacturer specifications, and when you looked into this, none are available. You remember from class that a professional engineer can certify a piece of equipment as safe to operate (at least every 12 months), however, if specifications are not available. Where is the specific reference to this located in the Alberta OHS Code