# Mark Herring Mark Herring is a Public Service Rate Case Analyst II in the Electric Utilities Section of the [[APSC General Staff]] — the [[Arkansas Public Service Commission]]'s in-house technical staff. In [[psc/docket-26-008-tf-2026-05-22/_overview|Docket 26-008-TF]] he is the Staff witness who reviews [[Entergy Arkansas]]'s Generating Arkansas Jobs Act rider update. ## Role and affiliations Herring testifies for the General Staff. He previously worked for the Arkansas Department of Transformation and Shared Services and the Arkansas Public Employees Retirement System. ## Appearances in the corpus - [[APSC Staff Testimony on the GAJA Rider]] — Responsive Testimony and Exhibits (Doc. 62, 2026-04-14); recommends excluding the Ironwood combustion turbine from rider recovery and correcting a rate-of-return error, cutting the requirement by $34.4 million. ## Role in T002 dialectics Herring's testimony is the Statement B (APSC Staff) primary anchor for [[T002 - Ironwood Strategic Investment Designation Requirement|T002]] and the source-of-record for both [[D002 Antithesis]] and [[D004 Antithesis]]. The central quotation from Herring at p. 6 — "the Commission has not made a finding that Ironwood is a strategic investment nor that EAL has the authority to allocate 100 percent of the costs of Ironwood to retail customers as a strategic investment" — frames the contested question. The dialectical record on T002 currently stands at `bracketed-because-Commission-ruling-pending` per [[D004 Synthesis]] (2026-05-24), with the live disagreement narrowed to a question of *minimum content* (what an order must contain to count as designation) rather than *categorical exclusion*. ## Notes Herring's testimony is the Commission Staff's check on the GAJA rider; like Entergy's filing, it treats the new-generation cost as falling on all retail rate classes.