How does lockout-tagout ownership work when the SOP is managed?

What does "managed" add to an SOP?

Three things. An owner, a current approved text and a review clock. Our lockout-tagout SOP names me as owner. The managed pin keeps the review owner and the current approved text visible to anyone who opens it. The review interval is 90 days, and the same arrangement covers the press-brake setup SOP.

Without those three things, a safety procedure drifts. Someone photocopies a version, someone annotates it, someone remembers the sequence from a previous employer, and within a year there are four procedures and nobody can say which one is in force.

What does the procedure actually require?

Before maintenance or setup, identify every energy source from the approved equipment isolation plan. Stop the equipment. Isolate it. Apply personal locks and tags. Dissipate stored energy. Verify the isolated state using the approved test.

The authorised worker records the equipment identifier, the isolation points and the verification result. Group work uses the approved group-lock arrangement, and each worker keeps personal control of their own lock. A shift handover must preserve isolation continuously. Only the authorised owner removes their lock, under the controlled removal procedure.

Why is a stop button not isolation?

Because a stop button is a control, not a separation from energy. It asks the machine to stop. Isolation removes the machine's ability to start. The SOP says it plainly: never treat a stop button as isolation. The verification step exists so that nobody has to take that on faith.

What happens when something does not match the plan?

You stop. If an isolation point cannot be identified, or the verification does not prove the safe state, the instruction is to stop and contact me. There is no improvised alternative in the procedure, and that is deliberate. A safety SOP that offers a fallback for an unverified state is not a safety SOP.

Before restart, account for people, guards and tools, and notify affected workers under the approved restart plan.

How is this different from an engineering question?

An engineering release and a safety isolation requirement are different decisions with different owners. Marcus Lindgren owns disputes about engineering drawings. I own safety clarification and controlled SOP review. An engineering release cannot waive a safety isolation requirement, and a torque answer does not replace the safety procedure. Keeping those two lines separate is how a field engineer avoids answering a safety question with a spec sheet.

Who is trained on it?

Anyone doing hazardous work here, and the distributor staff who go through the Distributor current-SKU certification path, which carries a module on safety and managed SOP ownership. A distributor does not perform our lockout, but a distributor who understands why a managed SOP exists will not tell a customer that a remembered sequence is good enough.

What is the boundary of this document?

It is a fictional training document for a demo workspace. It is not a replacement for a site-specific isolation plan or for competent supervision. We say so in the SOP itself, because a procedure that pretends to be universal is more dangerous than one that states its limits.

What is the summary?

• One owner, one approved text, review every 90 days.
• Identify, stop, isolate, lock and tag, dissipate, verify.
• A stop button is never isolation.
• Unclear isolation point or failed verification: stop and contact Priya.
• Engineering releases never waive a safety requirement.

What does a review every 90 days actually involve?

Reading the approved text against the current equipment isolation plans and asking whether anything has changed underneath it: new equipment, a changed isolation point, a restart plan that no longer matches the floor. If nothing has changed, the review records that nothing has changed and the clock restarts. If something has, the text is revised, approved and pinned, and the previous text is kept so that anyone trained on it can see what moved.

Why is the owner's name in the document?

So that "ask the safety lead" has a face. A procedure that says to escalate without saying to whom will be escalated to the nearest supervisor, who may or may not be the person who can answer. Naming me in the SOP is not about authority. It is about making the stop-and-ask instruction executable by someone who has been on site for a week.

Q&A

The questions people ask most about the managed lockout-tagout SOP are answered below.

Last updated 1 October 2026.