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Inherent Safer Design

ISD Integration with HAZOP and Risk Assessment

We embed inherent safer design findings into your HAZOP, LOPA and risk assessment workflows

Technical overview

ISD Integration with HAZOP
and Risk Assessment

Inherent safer design is most powerful early and most neglected late. The four strategies of minimise, substitute, moderate and simplify are typically debated once at concept selection and then forgotten as the project hardens around added protection. Integrating inherent safer design into the HAZOP and LOPA workflow keeps the question alive at every node, so that before a new alarm, trip or relief device is credited, the team is required to ask whether the hazard can instead be removed or reduced at source. Our team designs the procedural hooks and recording fields that capture inherent safer design challenges as first class findings, trains your facilitators to drive the hierarchy of controls discipline rather than default to engineered safeguards, and makes sure inherent options are evaluated with the same rigour as the protection layers they could displace.

ISD Integration with HAZOP and Risk Assessment Overview
Engineering process

ISD Integration with HAZOP and Risk Assessment workflow

Pre HAZOP ISD Workshop

Conduct pre HAZOP ISD workshop per CCPS Guidelines for ISD, review process flow / P&IDs for ISD opportunities (minimise / substitute / moderate / simplify) before HAZOP node walk through, capture early ISD options in design register.

HAZOP Node Integration

Integrate ISD lens into HAZOP node by node review, for each deviation, ask 'can we eliminate the hazard inherently?' before adding engineering safeguards, document ISD options alongside conventional safeguards in HAZOP worksheet.

Recommendation Classification

Classify HAZOP recommendations per CCPS, ISD (eliminate hazard), Engineered Safeguard (reduce risk), Procedural (administrative control), prioritise ISD over engineered, engineered over procedural per hierarchy of controls.

ISD Credit & LOPA Integration

Apply ISD credit in LOPA, eliminate scenario where hazard is removed inherently, reduce frequency where ISD modifies likelihood, reduce consequence where ISD moderates outcome, align with IEC 61511 / CCPS LOPA methodology.

Action Closure & MOC Discipline

Track ISD recommendations through implementation per HAZOP action register, require MOC review for any ISD action de scoping, align with PHA close out tracking and CCPS RBPS Process Safety Culture element.

ISD Programme Maturity Assessment

Conduct annual ISD programme maturity assessment per CCPS framework, leadership commitment, technical capability, design / operations integration, learning culture, benchmark against industry peers via RCMI / ICCA.

ISD Integration with HAZOP and Risk Assessment Scope
Scope of work

Every deliverable from basis to handover

Complete ISD Integration with HAZOP and Risk Assessment scope covering every calculation, drawing, specification, and construction support activity.

We design the inherent safer design challenge workflow
We train HAZOP facilitators in inherent safer design
We support LOPA risk reduction option evaluation
We track inherent safer design recommendations
We run stage gate inherent safer design reviews
We build a cross function inherent safer design culture
We provide a KPI and improvement framework
Engineering outcomes

Outcomes of ISD Integration with HAZOP and Risk Assessment

ISD Recommendation Implementation
  • We embed inherent safer design into routine risk assessment
  • We tighten substitution and minimisation actions
  • We reduce the safeguard burden over time
  • We support defence in depth
IEC 61511 and COMAH ISD and HAZOP Defence
  • We align with CCPS inherent safer design, HAZOP and LOPA guidance
  • We document risk reduction that puts inherent safety first
  • We support an ALARP demonstration
  • We give you evidence that withstands COMAH and Seveso scrutiny
Process Hazard Analysis Quality and ISD Credit Integration
  • We sharpen HAZOP and LOPA quality
  • We improve cross function dialogue
  • We build an inherent safer design culture across engineering
  • We support management of change discipline
HAZOP Action and SIL Cost Reduction
  • We reduce long term safeguard cost
  • We compress insurance pricing
  • We capture licensing differentiation
  • We support premium positioning for an inherent safer design led brand
Standards & references

Codes & standards we work to

CCPS ISDCCPS HAZOPCCPS LOPAEPSC ISDMSIHC Rules 1989 (India)Factories Act 1948 Section 41B (India)CCPS ISD and HAZOP IntegrationIEC 61882
When to engage

Triggers that signal the need

A HAZOP and LOPA programme refreshA post incident resetA safety case revalidationAn inherent safer design culture programmeA major capital programmeA periodic risk programme review
Industries served

Where ISD Integration with HAZOP and Risk Assessment applies

Oil & Gas, Upstream

Wellheads, separators, gas compression, FPSO topsides, produced water systems.

UpstreamOffshoreFPSO
Refineries & Petrochemicals

Distillation columns, reactors, heat exchangers, storage spheres, LPG handling.

RefiningPetrochemical
LNG & Gas Processing

Cryogenic exchangers, liquefaction trains, BOG compressors, storage and sendout.

LNGCryogenic
Specialty Chemicals

Reactive systems, batch reactors, solvent handling, runaway reaction scenarios.

ReactiveBatch
Power Generation

Boilers, HRSGs, steam headers, hydrogen systems, ammonia SCR units.

PowerHydrogen
Pharma & Food

Sterile vessels, CIP/SIP, pressure fermenters, solvent recovery, spray dryers.

PharmaFood & Bev
What we deliver

Tangible deliverables

  • Inherent safer design integration workflow
  • Facilitator training package
  • Risk reduction option evaluation framework
  • Inherent safer design recommendation tracker
  • Stage gate inherent safer design review template
  • Culture and KPI framework
Get Started

Ready to start your project?

Speak with our team to scope an engagement tailored to your facility, regulatory context, and lifecycle stage.