What must be done when considering altering any safety device, such as installing a jumper or bypass?

• A. Follow PSP 494 'Altering a Safety Device' process and implement countermeasures to ensure a safe working environment.
• B. Immediately bypass the device to test.
• C. Disable the device without documentation.
• D. Seek supervisor signature only.

Answer: (A)

Altering any safety device, such as installing a jumper or bypass, must go through the formal PSP 494 “Altering a Safety Device” process. This ensures a structured risk assessment, evaluation of how the change affects overall protection, and the implementation of countermeasures to keep the working environment safe. The process also requires proper documentation, approvals, and clear communication so everyone knows what changed and what new safety controls are in place. Bypassing or disabling a safety device without this process removes essential safeguards and can create new, unanticipated hazards. Simply seeking a supervisor’s signature does not replace the need for a documented, controlled change with verified safety measures.