There are three zones:
- White
- Grey
- Black
White this is the work that is really clear that you can do safely, driving on public roads, most carpentry, etc. This is work that you need a safe work practice (SWP) for, there is no need step by step instructions.
Black is no. You do not do it.
Grey is where I have the most fun. This is where you need the step by step procedures: confined spaces, critical lifts, etc. This is where with careful due diligence you can make the black a little bit grey.