Control Every Inhibit, Defeat, and Bypass of Your Safety Critical Systems
Safety overrides remove a layer of protection. Elisian ensures every one is justified, authorised by the right person, time-limited, and visible to every shift team — so no override is ever forgotten, left in place beyond its approved duration, or hidden from the people who need to know.
Override accumulation is a recognised precursor to major incidents
Safety overrides are unavoidable in high-hazard operations — maintenance activities, process upsets, and instrument failures all require protections to be temporarily defeated. The problem is not the override itself. The problem is what happens when overrides are managed on paper sheets, in spreadsheets, or not recorded at all.
Active overrides grow in number without anyone tracking them collectively. Justifications become vague over time. Overrides that were supposed to last 24 hours remain in place for weeks because no one has the definitive register. The shift team taking over does not know which protections are defeated because the paper sheet was not handed over or has been updated by someone else. An instrument alarm is inhibited "temporarily" and then forgotten — until the scenario it was designed to detect actually occurs.
Elisian's safety override management module closes every one of these gaps. Every override is raised through a structured workflow, approved at the right authority level, set with an expiry date, and visible in a live register that is automatically included in every shift handover. When an override approaches expiry, the responsible team is alerted. When it is removed, the full record — from request to reinstatement — is permanently stored in the audit trail.
Complete control of your safety override register
Elisian's Process Safety Overrides module gives you structured authorisation, a live override register, automatic expiry management, and a tamper-proof audit trail — all integrated with shift handover so incoming teams always know what is defeated.
-
Structured Override Request
Override requests are raised through a digital workflow specifying the affected system, override type, technical justification, compensatory measures, and requested duration. No override can be applied without a documented request on the record.
-
Authority-level Authorisation
Override approvals are routed to the correct authority level based on the override type and affected system. Higher-risk overrides require sign-off from a senior responsible authority — and the system enforces this, not the honour system.
-
Live Override Register
A real-time register of all active overrides — showing affected system, override type, authorising authority, application date, and expiry date. Visible to supervisors, control room teams, and onshore management without requiring a phone call or request to the outgoing shift.
-
Automatic Expiry Alerts
Every override carries an approved expiry date. The system generates alerts as overrides approach their expiry — prompting either formal extension with re-authorisation, or removal and reinstatement of the safety function. No override can silently persist beyond its approved duration.
-
Shift Handover Integration
Active overrides are automatically included in the shift handover report. Incoming personnel see the live override register as part of the formal handover — and their acceptance of the handover confirms they have been briefed on which protections are currently defeated.
-
Full Audit Trail
Every override — request, authorisation, extension, and removal — is permanently recorded. The audit trail shows the complete history of every override applied to each safety critical system, supporting regulatory inspections, incident investigations, and Safety Case assurance reviews.
From override request to reinstatement — fully controlled
Elisian enforces a consistent, structured process for every safety override — ensuring no protection is ever defeated without documented justification, the right authorisation, and a defined expiry.
-
Override Request & Justification
The requesting party raises a digital override request, identifying the affected system and protection device, the type of override (inhibit, defeat, bypass), the technical justification, any compensatory measures in place, and the required duration. The system validates completeness before routing the request for authorisation.
-
Authority-level Approval
The request is routed to the appropriate approving authority based on the override type and affected system. The approving authority reviews the justification and compensatory measures before signing off. Their approval is timestamped, attributed, and permanently recorded — and the override cannot be applied until approval is confirmed.
-
Live Register & Shift Handover
The approved override appears immediately in the live register. At shift change, it is automatically included in the handover report — so the incoming team knows exactly which protections are defeated before they take control, and their formal acceptance of the handover confirms this briefing on the record.
-
Expiry Management & Reinstatement
As the override approaches its expiry date, the responsible team is alerted automatically. The override is either formally extended — with re-authorisation and an updated justification — or removed, with the safety function reinstated and confirmed. The full lifecycle is recorded in the permanent audit trail.
Wood CATS — Gas Transmission
Wood's CATS (Central Area Transmission System) operation manages a high-pressure subsea gas pipeline running over 400km from the central North Sea to Teesside. Elisian's Process Safety Overrides module was deployed as part of the broader operational assurance platform — giving Wood's team a structured, auditable process for controlling every safety override across the transmission asset.
The override register integrates directly with Elisian's Permit to Work and Handovers & Events modules, ensuring that active overrides are visible within the permit workflow and automatically communicated at every shift change.
Read the Full Case StudyCommon questions about safety override management software
- What is safety override management software?
- Safety override management software is a digital system that controls, documents, and monitors every inhibit, defeat, or bypass applied to a safety critical system or protection device. It replaces informal paper-based override registers with a structured authorisation workflow, a live register of all active overrides, and automatic alerts when overrides approach or exceed their approved duration.
- Why do oil and gas operators need a digital safety override management system?
- Safety overrides remove a layer of protection. When overrides are managed on paper or in spreadsheets, their number grows unchecked, justifications become vague over time, and overrides remain in place long after the work that required them is complete. A digital system ensures every override is justified, authorised, time-limited, and visible to everyone who needs to know — preventing the override accumulation that is a recognised precursor to major incidents.
- What types of overrides does Elisian's system manage?
- Elisian's safety override management module covers all common override types in oil and gas operations: inhibits and bypasses on safety instrumented systems (SIS), fire and gas (F&G) detector defeats, emergency shutdown (ESD) system bypasses, high-integrity pressure protection system (HIPPS) overrides, and alarm inhibits. Override types and approval requirements are configured to match each operator's safety management system.
- How does safety override management integrate with shift handover?
- Active safety overrides are automatically surfaced in Elisian's shift handover module. The outgoing team's handover report includes the live override register — so the incoming team is always briefed on which protections are currently defeated before they take control. Their formal acceptance of the handover confirms this briefing on the record, closing a critical gap in safety critical information transfer.
- How does Elisian handle overrides that are approaching expiry?
- Every override in Elisian carries an approved expiry date. The system generates alerts as overrides approach expiry — prompting either a formal extension with re-authorisation and updated justification, or removal and reinstatement of the safety function. Overrides cannot silently persist beyond their approved duration without a positive action and a new authorisation on record.
- How does safety override management software support regulatory compliance?
- Every override request, authorisation, extension, and removal is permanently recorded in Elisian's audit trail. Regulators and duty holders can see the full history of every override applied to a safety critical system — supporting compliance with the Safety Case regime, HSE expectations for process safety management, and the requirements of IEC 61511 for safety instrumented systems.
Safety overrides are most effective when connected to your wider operational assurance system
Elisian's Safety Overrides module integrates with Shift Handover, Permit to Work, and Management of Change — ensuring that every override is visible to the people who need to act on it and linked to the work that required it.
-
Shift Handover Software
Active overrides are automatically included in the shift handover report. Incoming teams confirm which protections are defeated as part of their formal handover acceptance — every shift, every time.
-
Control of Work
Work that requires a safety override is controlled through a linked permit — ensuring the override and the work authorisation are connected in a single auditable record, not managed in separate systems that cannot see each other.
Ready to take control of your safety override register?
Talk to us about how Elisian's safety override management software can replace your paper register and give every shift team a live, accurate picture of which protections are currently defeated.