Section 1804(a)(2)(A)(i) requires Notices to include a statement of the nature and extent of the customer's planned participation in the proceeding to the extent this can be predicted. Local 483 indicates in its amended notice that it intends to be particularly interested in the level of service to ratepayers provided by the Transmission and Storage Divisions of SoCalGas, and that it has a concern with safe levels of service affected by such factors as possible reductions in equipment and facility maintenance, overlapping use of contractors and "regular" employees. Additionally, Local 483 asserts that it will be active on most issues including incentive mechanisms (which is deferred to phase II).