Impact tolerance
In French : Tolérance à la perturbation
The maximum level of disruption to an important service that an organisation can tolerate, usually expressed in time. It is a regulatory ceiling on harm, not an internal recovery target.
Source : PRA SS1/21 / BCBS 516
Related terms
Recovery time objective
The period of time within which an activity, product or service must be resumed after disruption, and the associated resources restored.
Important business service
A service delivered to an external client or to the market whose disruption would cause intolerable harm. It is expressed from the user's viewpoint, never from the org chart.
Maximum tolerable period of disruption
The time beyond which the consequences of disruption become unacceptable to the organisation. It is a ceiling, not a target.