This is the ESIF recommendation for managing location confidence and uncertainty for Wireless Phase 2 calls. If confidence and uncertainty can be determined by the location technology, then the location technology should fix confidence and vary uncertainty to illustrate the probable location of the caller. Regarding uncertainty, there is value to the Public Safety Answering Point (PSAP) in delivering uncertainty, but since the confidence value is fixed, it provides no additional information that would be of value to the PSAP in dispatching emergency resources. As a result, the PSAP community is cautioned in the use of uncertainty. Please refer to the document for the complete ESIF recommendation, including detailed background information.