Section 1318.501 - Mitigation commitment identification, auditing, and reporting(a) All appropriate measures to mitigate expected significant adverse environmental impacts ("mitigation measures") must be identified in an EA or EIS. Those mitigation measures to which TVA commits must be identified in the associated FONSI or ROD (or the documentation, if any, prepared for a categorical exclusion).(b) Each mitigation commitment that is not required under regulations will be assigned by the NEPA compliance staff to the TVA entity responsible for implementing the commitment. The NEPA compliance staff should consult with the responsible entities to resolve assignment conflicts, identify supporting offices, and determine implementation schedules.(c) The responsible entity shall report to the NEPA compliance staff the status of mitigation commitments periodically or whenever a specific request is made.(d) The NEPA compliance staff must ensure that commitments are met and will verify commitment progress.(e) Circumstances may arise that warrant modifying or cancelling previously made commitments. The decision to modify or cancel a commitment will be made by the NEPA compliance staff in consultation with TVA legal counsel, after considering the environmental significance of such a change.