Below a most plausible ICER of £20,000 per QALY gained, or £100,000 per QALY gained for highly specialised technologies, the decision to recommend a technology is normally based on the cost-effectiveness estimate and the acceptability of a technology as an effective use of NHS resources. When the estimated ICERs are less than £20,000 per QALY gained, or £100,000 per QALY gained for highly specialised technologies, and the committee decides that the technology should not be recommended, the committee will make specific reference to its view on the plausibility of the inputs to the economic modelling, or the certainty around the estimated ICER, or both. This might be affected, for example, by sensitivity analysis or limitations to the generalisability of findings about effectiveness.