Management of change (MOC)
ASP written lesson, 12 min read. ASP Domain 2: Safety Programs and Concepts
Written with AI help from the rules it covers, then fact-checked against them. Study aid, not site-specific safety advice. The official rule controls.
What you'll learn
- Explain why management of change exists and what 'replacement in kind' means
- Decide whether a proposed change to chemicals, technology, equipment, procedures or facilities triggers MOC
- List the five considerations a written MOC procedure must address before any change
- State who must be informed and trained, and when, and which documents must be updated
- Connect MOC to the pre-startup safety review and process hazard analysis
- Apply good practice to temporary changes and to scaling the review to the change
What this lesson covers
Most process disasters start with a change nobody reviewed. This lesson explains OSHA's management of change rule in the Process Safety Management standard, what counts as a change, the five things every review must address, who must be trained before start-up, and how good programs handle temporary and small changes.
This lesson is included with a pass
Written lessons come with every ASP pass, along with the video lessons, the question bank, mocks and the tutor. $80 per exam for 6 months, or $143 for all three for 12 months.