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ALARP Principles & Guidelines

19th March 2019 - 20th March 2019


Risk reduction measures are required to be demonstrated in Safety Case as per Singapore WSH (MHI) Regulations. One of the key components of Safety Case is to demonstrate risk reduction to As Low As Reasonably Practicable (ALARP) level by adopting and implementing control measures. Therefore, there is a need to understand the use of these principles with respect to the level of uncertainty and on the risk criteria. In this case-study led workshop, delegates will be taught on the key concepts, and approaches taken to demonstrate or provide evidence on ALARP.

This course covers the important principles of ALARP. It discusses the variability of ALARP requirements for managing similar hazards in different circumstances and the application of risk targets. It looks at different ways of assessing risk from quantified approaches to qualitative approaches for both consequence and frequency analysis and when to use these. The application of inherent safety principles and recognised good practice are discussed along with Cost Benefit Analysis (CBA) and the concepts of reasonably practicable and disproportionality. Besides demonstrating ALARP in the Safety Case, ALARP should be applied throughout the life cycle of any facility.

This workshop will touch on how to apply the concept in different situations such as during design, specifying instrumented safety systems, operating procedures, and coverage during maintenance of safety critical equipment. Several case studies are presented for the delegates to work through and a discussion on common errors and how the concept is often misused. Throughout this workshop, participants will be taught on how to prove that ALARP has been properly implemented as part of effective risk management and how ALARP is implemented in the design, development, and operation of engineering systems.

Who Should Attend

Engineers, Executives, Supervisors, and Managers especially those who work in Technical & Planning, Production/Operation, Engineering, and SHE departments in Refinery, Chemicals, and Petrochemical settings will benefit by attending this course.

Potential attendees are:

  • Process Engineer
  • Process Champion
  • EHS Engineer
  • Production Engineer
  • Production Supervisor
  • Maintenance Engineer
  • Operations Engineer
  • Mechanical Engineer
  • Piping Engineer
  • Production Manager
  • Technical Manager
  • Technical Development Manager

Key Learning Points

  • Learn the essential principles of ALARP and how it fits within a Safety Case
  • Gain the key concepts of ALARP principles and the fundamental approaches for its applications
  • Know the HSE principles for CBA in support of ALARP decisions
  • Understand the approaches to good practice and to demonstrate ALARP using different decision making criteria
  • Acquire tools and techniques to determine factors in selecting or rejecting control measures
  • With each process deviation, apply the concept of ALARP or risk elimination on the causes and consequences
  • Become familiar with PHA study, its context in WSH Act and its relation in Safety Case regime
  • Exercise caution in regards to reverse ALARP whereby CBA or QRA is used to justify higher risk

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