The OSHA thing is moving on two tracks, both thracks “owned” by OSHA.
One track is the emergency rule. This requires a finding of grave danger. They found it, but they know this finding can be rejected by a court.
So, OSHA also set out on the regular rulemaking track. This doe not require a finding of grave danger, but does require time for public comment. The standard here is “significant risk,” whatever the government/courts decide that is. Arc Flash kills maybe 10 people a year. That’s enough to trigger “significant risk.”
OSHA is about to become a “grave risk” and a “great danger” with the vaxx mandates.