The CCPS defines Inherently Safe Design as:

A way of thinking about the design of chemical processes and plants that focuses on the elimination or reduction of hazards, rather than on their management and control.

The HSE offers guidance on Inherently Safe Design including the following considerations:

  • Intensification
  • Substitution
  • Attenuation
  • Limitation
  • Simplification
  • Knock-On Effects
  • Avoid Incorrect Assembly

Trevor Kletz prepared guidance on this topic in “Cheaper, Safer Plants, Or, Wealth and Safety at Work: Notes on Inherently Safer and Simpler Plants” and the principles are also documented in the following book:

This topic relates to the following PSM elements:

Compliance with Standards
Process Knowledge