Control Who Reaches the Machine, and When
General information on workplace machine safety: guarding, operator authorization and lockout/tagout.
Machines hurt people in a few predictable ways: someone reaches into a moving part, someone untrained runs the controls, or someone starts a machine while a colleague is inside it. Machine Access explains the three controls that stop those moments: guarding, operator authorization and lockout/tagout.
Three layers of control
Guards
Physical barriers and devices that keep hands, hair and clothing away from hazards during normal running.
Authorization
Only trained, approved people operate or adjust each machine. Everyone else stays hands-off.
Lockout/tagout
Energy is isolated and locked before anyone services, clears or repairs the machine.
They work together. A guard does nothing during maintenance if the machine can be switched on. A lock does nothing during production. Read how they fit in machine safety controls.
Where problems hide
Workarounds
A guard removed to speed up a job and never put back.
Informal training
Shown once by a colleague, never checked, never recorded.
Quick fixes
Clearing a jam with the machine merely stopped, not isolated.
Shared keys
Keys and passwords that let anyone start anything.
Questions we answer
- What is lockout/tagout and when is it needed?
- Who should be allowed to operate a machine?
- What types of machine guards are there?
A practical first step
Try the machine access floor walk. One loop of your workplace, a clipboard and the right questions.
This is general information, not legal or compliance advice. Rules differ by country and industry, so confirm requirements with your safety regulator or a qualified safety professional.