What elements should be included for safety-critical steps in an SOP?

• A. Lockout/Tagout procedures and PPE only
• B. Verification steps only
• C. Lockout/Tagout procedures, required PPE, hazard controls, safe work methods, and verification steps
• D. Hazard controls and training records only

Answer: (C)

When drafting safety-critical steps in an SOP, you need a complete set of protections and checks that cover how the work is done and how you know it’s safe. Lockout/tagout procedures isolate and control hazardous energy so equipment can’t start unexpectedly during maintenance. Required PPE specifies the exact protective gear needed for the task, based on identified risks. Hazard controls encompass additional risk-reduction measures, such as engineering controls and administrative controls that lessen exposure. Safe work methods lay out the exact, step-by-step actions to perform the task safely, including sequencing and proper tool use. Verification steps provide a way to confirm that hazards have been controlled and the task is completed correctly, often through checklists, testing, or sign-offs.

Choosing only a subset leaves gaps. For example, listing just lockout/tagout and PPE misses how risks are further reduced and how the work is actually performed safely, as well as how you prove the step was done correctly. Focusing on verification alone omits how energy is controlled, what protection is required, and what safe procedures to follow. A combination of these five elements ensures the SOP is actionable, auditable, and truly safety-focused.