The 3Ts (Timely, Tangible, Targeted)
The entry test for whether a measure counts as a control at all.
- Timely
- In place before the exposure and active while the hazard is present.
- Tangible
- Physically present and observable on site, not a policy or a plan.
- Targeted
- Designed and installed for that specific high-energy hazard.
A measure that fails any of the three is not a control. To be a Direct Control it must also be Strong and Forgiving:
- Strong
- It mitigates the exposure when installed, verified and used properly.
- Forgiving
- It still works when a person makes an unintentional mistake.
Related terms
- Direct Control
- A control that stops a high-energy release even when a person makes a mistake.
- Alternative Control
- What is required where no Direct Control is feasible: layered error-reduction measures.
- High-energy control assessment
- A field assessment of whether each high-energy hazard on a task has a Direct Control.