Which type of error results from missing a critical step?

The type of error that results from missing a critical step is known as an omission error. This error occurs when an important action or component is not performed or included in a task or process. In a safety context, omission can lead to significant risks and hazards because the necessary measures for ensuring safety are not fully executed. For instance, failing to conduct a vital safety inspection before starting operations would be a clear example of an omission, as it can leave potential dangers unaddressed.

Other types of errors, such as commission, involve taking actions that should not have been taken, while timing and sequence errors pertain to when steps are carried out or the order in which they are executed. These types of errors do not specifically address the failure to perform a crucial step, which highlights why omission is the correct choice in this context.