The first entry is always the pin's source. Overall confidence is a weighted average of how firmly each reference supports the start and end times used above; a reference counts half as much for every 180 days older than the newest.
Legislative action date (2026-01-13) tracked by AI Data Center Legislation Tracker.
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South Carolina HB 4583, the South Carolina Data Center Responsibility Act (bipartisan: Reps. Cromer, Gilreath, Oremus, Chumley, White, Reese, Lawson, Atkinson), introduced January 13, 2026, mandates closed-loop cooling systems requiring zero net water withdrawal and net zero wastewater discharge, and prohibits data centers from extracting groundwater or using municipal water for cooling. As of early 2026, the bill remains in the House. Companion bills include S 867 (data center development), H 902 (data centers), and H 724 (commercial data center water usage report). Part of a broader SC legislative push as the state hosts billions in Google data center investment. VERIFIED 2026-05-26: Did not advance before South Carolina's regular session adjourned May 14, 2026 (carryover possible in the 2-year biennium). The SC Senate did pass budget provisos requiring annual data center water-use reporting ($10k/day penalty) and an economic-incentive moratorium.