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Technique · Issued by IEC 61882

HAZOP

Hazard and Operability Study

SafetyProcessEngineering
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Structured guideword-based study of process deviations — the standard for chemical, oil & gas and pharma safety.

Multidisciplinary team walks through a P&ID applying guidewords (No, More, Less, As Well As…) to each node. Required by many process-safety regulations.

At a glance

Complexity
Medium
Certification
No
Time to implement
Weeks
Issued by
IEC 61882

Fits

Industries
oil gasmanufacturinghealthcare
Risk types
safetyoperational
Frequently asked

Questions risk leaders ask

A structured team-based technique using guidewords (e.g., MORE, LESS, NO) to identify process deviations and hazards. Standardized by IEC 61882 for safety-critical industries like chemical, oil & gas, and pharma.
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Frameworks & regulations frequently referenced together

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