BIS press release 2025-05-13 - rescission of the AI Diffusion Rule; strengthened chip export controls

PRIMARY BIS press release, fetched in full. The AI Diffusion Rule was issued 2025-01-15 with compliance required from 2025-05-15; on 2025-05-13 DOC announced its rescission and instructed enforcement officials not to enforce it, stating BIS 'plans to publish a regulation formalizing the rescission and will issue a replacement rule in the future'. Same-day BIS actions that DID tighten rather than loosen: guidance alerting industry to the risks of using PRC advanced computing ICs including specific Huawei Ascend chips; guidance warning of consequences for allowing US AI chips to train or run PRC AI models; and supply-chain diversion guidance to US companies. Why a supply record needs this: the country-tier structure that determined which buyers could lawfully be sold which accelerator was set by the Diffusion Rule and is now being replaced, so any recorded export-control status carries a validity date and must name WHICH instrument it rests on rather than saying 'export controlled' generically.