OH&S hazard identification address the hazards identified

I can understand how it can be time consuming to identify which hazards need to be addressed, but this can help to ensure that you are at the right level of the hierarchy of controls identified in clause 8 of ISO 45001. What I mean is, if you have a hazard that does not pose that big of a risk, it is not required to address this at the top of the hierarchy by elimination or engineering control. However, for hazards that pose the biggest risk will want to have more than just PPE control (the lowest level) to address this risk. While an FMEA type approach is not required, it is one way to come to these risk assessments.

As for convincing when the higher levels of control are needed, this should be justified by the risk assessment. If the assessment shows a high level of risk, and the assessment method is accepted (which can be a big problem), then the decision should be obvious as to why you need to use the control level identified. The biggest problem is overcoming this questioning of the method; get it agreed first and then the high risk assessment should lead to high levels of control.

You can read more on the entire process of hazards, risks and opportunities in ISO 45001 in the article: The basics of ISO 45001 hazards, risks, and opportunities, https://advisera.com/45001academy/blog/2021/02/22/the-basics-of-iso-45001-hazards-risks-and-opportunities/