ISO 45001 clause 7.4: make OH&S communication accessible and reliable
ISO 45001:2018 clause 7.4 requires processes for internal and external communication relevant to the OH&S management system. The organisation determines what, when, with whom and how to communicate. The process needs to account for diversity, relevant requirements and reliable information, and respond to communications that matter to the system.
What clause 7.4 requires in practice
Clause 7.4 requires processes for internal and external communication relevant to the OH&S management system. It has three subclauses. Subclause 7.4.1 sets the general decisions: what to communicate, when, with whom and how, with attention to diversity, the views of external interested parties, legal and other requirements, and the reliability and consistency of the information. The organisation also responds to relevant communications and retains evidence as appropriate.
Subclause 7.4.2 covers internal communication among levels and functions, including changes, and requires that the process lets workers contribute to continual improvement. Subclause 7.4.3 covers external communication according to the organisation's process and its legal and other requirements. Communication is not the same as consultation and participation, which the standard requires separately, and it needs to work for each audience.
Connect the general, internal and external requirements
Clause 7.4.1 establishes the overall decisions and information-quality requirements. Clause 7.4.2 addresses information across relevant levels and functions, including changes, and enables worker contribution to improvement. Clause 7.4.3 addresses external communication according to the process and legal and other requirements.
Communication supports consultation and participation, but does not replace them. Telling workers about a completed decision is different from seeking their views beforehand or involving them in deciding. Keep the purposes clear when designing meetings, messages and feedback routes.
Consider who needs the information
Workers, contractors, visitors and other interested parties may need different information. Account for relevant differences in language, culture, literacy, disability and other diversity factors. A message that exists only in a format some recipients cannot use may fail its purpose despite being formally issued.
Determine the method and timing from the decision or action needed. An operating change may require communication before work begins; an incident-learning message may need careful factual review. Relevant external parties’ views also inform the communication process.
Why communication quality is a safety control
A great many incidents trace back to someone acting on out-of-date, missing or misunderstood information, such as a changed work sequence nobody told the next shift about. Reliable communication prevents that, and a well-designed route for concerns brings problems to the surface while they are still cheap to fix. It also supports relationships with contractors, clients, authorities and emergency services, who rely on accurate information from you. An auditor will often test the system by asking a worker or contractor how they would raise a concern, then following what happened to a real one.
How to implement clause 7.4
One way to implement the clause as a whole is to build a simple communication map and then test it with real messages. Start with the messages that matter most for safety, such as changes to controls, rather than trying to document every communication at once.
- List the situations that need communication: changes, hazards, incidents, emergencies, concerns and external requests.
- For each, note the audience, the timing and the best method, including shifts, remote workers, contractors and visitors.
- Check accessibility for language, literacy, culture and disability, and adjust formats and routes.
- Name who checks and releases important messages, and who answers incoming communications.
- Provide routes for workers to give feedback and to challenge unclear information.
- Trace a sample of real messages to see whether they arrived, were understood and led to action, and record what you find.
- Review the map when changes, incidents or complaints show that a message did not arrive or was not understood.
Two illustrative communication arrangements
A construction project changes the sequence of work in a shared area. Supervisors and contractor representatives coordinate a message that explains the change and relevant controls in accessible ways. Workers can raise conflicting information before starting the affected task. The process checks understanding across the actual workforce rather than relying only on an email to company managers.
A software business introduces a route for reporting work-related concerns across remote teams. It explains what to report, who receives the information and how responses are managed. The team considers access and privacy in the chosen channel. It also checks whether workers believe the route is usable, instead of measuring success only by the number of messages sent.
Maintain reliability and response
Communicated OH&S information should be consistent with information generated within the system and reliable. Verify important facts and preserve relevant limitations. An incident account should distinguish established findings from matters still under investigation.
Respond to relevant communications and connect them with action where appropriate. A contractor question may reveal a coordination gap; worker feedback may identify an impractical instruction. The process should route the issue to someone with authority and competence to assess it.
Evidence and common mistakes
Retain documented communication evidence as appropriate. Important briefings, responses and decisions may need records, while every informal conversation need not be transcribed. The standard does not prescribe one communications matrix or platform.
Common weaknesses include communicating only with permanent employees, assuming a read receipt proves understanding and allowing external messages to contradict internal evidence. Another is inviting reports without a response route, which can discourage future participation and leave important information unused.
Explore each numbered part
7.4.1 · design communication around people and decisions
The general communication process needs to explain who receives information, when, how and for what purpose. Clause 7.4.1 also requires attention to diversity, external views, applicable requirements and reliability. This guide shows how to build a response route and appropriate evidence around actual work decisions, including multilingual and remote-work examples.
7.4.2 · connect internal updates with worker contribution
Internal OH&S communication should connect management decisions with the people performing the work and bring useful information back. Clause 7.4.2 includes system changes and contribution to improvement. This guide explains handovers, shifts, remote teams and feedback, showing how to test whether an update changed practice rather than merely reached an email distribution list.
7.4.3 · manage external OH&S communication
External communication needs to support coordinated work and accurate information, with legal and other requirements taken into account. Clause 7.4.3 connects the organisation’s communication process with contractors, clients and other relevant parties. This guide explains useful boundaries, reliable reporting and practical response arrangements without prescribing universal disclosure duties or unsupported safety assurances.
Frequently asked questions
Is communication the same as consultation?
No. Communication exchanges information; consultation seeks views before a decision, and participation involves decision-making.
Must all messages use the same format?
No. Choose methods suited to the audience, purpose and relevant diversity needs.
Does every conversation need a record?
No universal recording rule applies. Retain appropriate evidence based on significance, requirements and system needs.
Improve one important information flow
Discuss accessible OH&S communication with Sterling, including implementation and audit evidence. The ISO 45001 Awareness course supports shared understanding. Effivity ISO & GRC automation software can be scoped to agreed process needs. See support and the directory.