Which of the following is NOT one of the five steps of ORM?

The correct choice in this context is 'maintain' as it is not one of the recognized five steps of Operational Risk Management (ORM). The five fundamental steps of ORM are to identify hazards, assess hazards, make risk decisions, implement controls, and supervise and review.

While 'maintain' might seem relevant in the context of managing risks, it actually does not correspond to any of the established steps in the ORM process. The purpose of ORM is to systematically manage risks while completing tasks to enhance decision-making and safety. Therefore, the first four options represent the systematic approach taken to identify risks and incorporate measures to mitigate those risks effectively. In this process, supervision and review serve to ensure that implemented controls are working as intended, but there is no standalone step specifically labeled as 'maintain.'

Understanding these distinctions within ORM is crucial for effective risk management and operational safety in the Marine Corps.