The Court made several non-binding observations: (1) Inspectors under OHSA have wide-ranging and materially intrusive powers, including the power to stop business operations and initiate criminal prosecution, which justifies strict compliance with designation requirements; (2) The certification requirement serves multiple purposes: proving proper designation of qualified persons, establishing locus standi to exercise inspector functions, and protecting affected persons who can demand production of certificates under section 28(3); (3) The absence of any explanation from respondents regarding missing certificates, or evidence that certificates were issued and perhaps lost, permitted the inference that no certificates were ever issued; (4) Section 8(c) of the Facilities Regulations (requiring seats with backrests) only applies where the nature of work is such that employees can use such seats while working, which was not the case here; (5) In labour-related matters, costs should not be readily awarded against functionaries carrying out statutory duties without malice, as this may create a chilling effect on proper enforcement activities; (6) The first appeal under a statutory provision deserves judicial attention even if ultimately successful, which is a relevant consideration against awarding costs.