ANSI B11.0-2023 vs. OSHA 1910.212: Proving Acceptable Risk on Legacy Equipment

Frequently Asked Questions

Does OSHA require ANSI B11.0?

OSHA enforces 29 CFR 1910.212, not ANSI B11.0 itself. But ANSI B11.0 is a recognized framework that helps you document how you identified hazards, reduced risk, and evaluated residual risk.

Can old machines be grandfathered under OSHA machine guarding rules?

No. The article explains that OSHA focuses on current employee exposure to hazards, not the age of the equipment or its original design.

What does acceptable risk mean for a legacy machine?

It does not mean zero risk. It means hazards were identified, risk was reduced with appropriate controls, and the remaining residual risk was reviewed, documented, and communicated.

Why use a job hazard assessment for machine safety?

A task-level JHA helps connect hazards to the real steps operators, setup staff, and maintenance employees perform. That makes hazard identification, risk ranking, and control selection more defensible.

When does lockout/tagout belong in a machine risk assessment?

It belongs anywhere servicing or maintenance exposes employees to hazardous energy. The article notes that normal production, minor servicing, and full maintenance activities need to be clearly distinguished and documented.