Safer work starts with better knowledge.

Treat unexpected leakage as a possible major hazard warning.

Know the purpose and hazards of the equipment you operate.

Follow the approved operating envelope and escalation arrangements.

Respond to alarms using the approved instructions.

Do not bypass process safety interlocks without formal authorisation.

Review technical and organisational changes before implementation.

Use competent maintenance and verified replacement parts.

Report signs of deterioration for competent assessment.

Coordinate intrusive work with process operations.

Verify interfaces with connected systems during planned work.

Confirm readiness before restarting after maintenance or modification.

Handover abnormal conditions, isolations and outstanding work.

Know your role and authorisation limits during escalation.

Share relevant process hazards with maintenance contractors.

Investigate releases and safeguard failures before a larger event.

Keep operating and emergency information aligned with actual plant.

Check whether production pressure is weakening critical controls.

Which safeguard prevents the most serious credible incident here?