Independent re-verification confirms all three cited sources are real, live, and directly support the outcome. Trump kept the 'Day One' promise literally: on Jan 20, 2025 he signed Executive Order 14154 'Unleashing American Energy,' which set policy to 'eliminate the electric vehicle (EV) mandate,' terminate state emissions waivers, and 'terminate the Green New Deal.' He then drove concrete follow-through: on June 12, 2025 he signed three Congressional Review Act resolutions revoking California's Clean Air Act waivers (Advanced Clean Cars II, Advanced Clean Trucks, Heavy-Duty NOx) that 17 states had adopted, and the One Big Beautiful Bill Act (signed July 4, 2025) ended the $7,500 new-EV and $4,000 used-EV tax credits after Sept. 30, 2025. As of the July 2026 evaluation date the dismantling is even more complete than the original rating noted: EPA finalized rescission of the Greenhouse Gas Endangerment Finding and the Motor Vehicle GHG Emission Standards (final rule effective April 20, 2026) — the core federal tailpipe 'mandate' — and NHTSA's June 2025 interpretive rule removed EVs from CAFE calculations (with a broader CAFE rollback proposed Dec 2025). Every pillar of the targeted policy has been revoked, rescinded, or enacted. This is essentially 100% fulfillment; the same record would earn FULL for either party, so the label reflects the evidence, not partisan leniency. Confidence held at 0.92 because the California-waiver CRA revocations remain under active litigation (California + 10 states sued) and the NHTSA CAFE final rule is not yet finalized — the only genuine loose ends.