Notes

• NOTE 1 For example a 95 % CL means that there is a 5 % chance that the specified environment can be exceeded according to the model.
• NOTE 2 Statistical environment models often provide outputs as a function of confidence level (CL).
• NOTE 3 The CL does not account for systematic uncertainties associated with environment models.
• NOTE 4 The confidence level is typically a chosen parameter which stipulates the level of uncertainty one is willing to accept.