Final answer:
When immediate death or serious harm is likely, OSHA conducts fatality or catastrophe inspections to gather information about workplace accidents that resulted in a fatality or hospitalizations.
Step-by-step explanation:
When immediate death or serious harm is likely, fatality or catastrophe inspections are conducted by OSHA. These inspections are carried out in response to a workplace accident that resulted in a fatality or hospitalizations. The purpose of these inspections is to gather information about the incident, identify the causes, and prevent similar incidents from happening in the future.