Before altering any safety device, which process must be followed?

• A. Follow PSP 494 'Altering a Safety Device' with counter measures.
• B. Notify supervisor only.
• C. Disable the device without documentation.
• D. Bypass the device to test the system.

Answer: (A)

Before altering any safety device, a formal, documented process must be followed to protect people and equipment. The required approach is to follow PSP 494 'Altering a Safety Device' and implement the associated counter measures. This means using the established procedure to assess risks, obtain the necessary approvals, alert affected personnel, apply any temporary safeguards, and document all steps. It also ensures the device is properly restored and re-tested before returning to normal operation.

Simply notifying a supervisor doesn’t complete the risk assessment, authorization, or documentation needed for a safe alteration. Disabling the device without documentation or bypassing it to test the system creates unsafe conditions and violates safety policy.