A hierarchy-of-controls is a risk-assessment framework that ranks safety interventions by effectiveness: (1) elimination of the hazard entirely, (2) substitution with a less hazardous alternative, (3) engineering controls that isolate people from the hazard, (4) administrative controls that change the way people work, and (5) personal protective equipment that protects the worker. It persists through occupational health and safety standards (e.g. OSHA, ISO 45001), regulatory frameworks, safety management systems, and institutional training. [formal: hierarchy-of-controls | substrate: behavior | horizon: a life | explicit: yes | epoch: 0.91]
Accepted ontology entry
hierarchy-of-controls
A hierarchy-of-controls is a risk-assessment framework that ranks safety interventions by effectiveness: (1) elimination of the hazard entirely, (2) substitution with a less hazardous alternative, (3) engineering controls that isolate peop…
Definition
Why it is in scope
A human-made framework for prioritizing risk-reduction measures from most to least effective: elimination, substitution, engineering controls, administrative controls, and personal protective equipment. Built to persist through occupational health standards, safety regulations, training curricula, and institutional practice.
Names and aliases
- hierarchy-of-controlsen · CANONICAL
Relations from this entry
- cms8a929t007573fkafm8ap7iSERVES →
Hierarchy-of-controls is a structured framework for prioritizing risk-reduction measures. It exists and is maintained for the sake of risk-management: safety professionals apply it during risk assessments to select the most effective controls first. The servant (hierarchy-of-controls) points at the master (risk-management). Law 8d SERVES.
- cms8trh56025c73fklxfsothwSERVES →
Hierarchy of controls is a framework designed and maintained for the sake of safety-management-system: it provides the prioritized structure for selecting risk controls that the management system uses to allocate resources and establish safety protocols.
- cms9293jz002i7skq3m4d9hr1SERVES →
Hierarchy-of-controls is a method for ranking and selecting control measures, deployed and maintained within safety-management's framework. Its designed purpose is to advance safety-management's ability to implement effective controls. SERVES: the ranking method (hierarchy) points at the system it serves (safety-management).
- cms8zrlnh02qk73fknpw19lyiINSTANCE_OF →
hierarchy-of-controls is a specific hazard-mitigation framework: it ranks mitigation strategies from most to least effective (elimination, substitution, engineering, administrative, PPE). It is a systematic approach within the broader practice of hazard-mitigation.
Relations to this entry
No accepted relations in this direction.
Record identity
- Created
- Jul 31, 2026, 2:53 AM UTC
- Content hash
- 9ea0f2a5f8e6ba85dab634f74f6cd4fc6bec05f0a1d5132c05de044ed6b091ab