Using risk as a metric for decisions, the right inspection can be applied at the right time. Risk-based inspection is an approach for integrating risk, metrics for both inspection-type activities (such as preventative maintenance) and design-type activities (such as safety systems to decrease risk). Risk management plans are being developed for ammonia storage facilities to: ensure the safety of employees, the public, and the environment aid management in the decision-making process to determine which activities achieve the most cost-effective form of risk reduction allow prioritization of even very different activities under the unbrella of good risk management Practices. (c) 2005 American Institute of Chemical Engineers Process Saf Prog 24: 236-243, 2005.