GDPR is Regulation (EU) 2016/679, the world's most prescriptive data-protection regime, in force since May 2018 across all 27 EU Member States plus the EEA. Total cumulative fines exceeded €4.5B between 2018–2024, with Meta's €1.2B fine in 2023 for SCC violations the single largest. There are 90+ supervisory authorities across the EU + EEA, each with the power to investigate, audit, fine up to 4% of global annual turnover, and order processing to stop. The Article 30 ROPA is non-negotiable. The Article 35 DPIA threshold is non-negotiable. The Article 33 72-hour breach clock is non-negotiable. The audit walkthrough in this checklist is the same structure most supervisory authorities use to open inquiries.
UK GDPR + Data Protection Act 2018 govern UK processing post-Brexit, with the ICO as supervisory authority. UK GDPR is diverging from EU GDPR through the Data (Use and Access) Act 2025, covering automated decision-making, scientific research, smart-data sharing, and cookie + similar-technology rules. ICO enforcement remains active: Clearview AI, TikTok (£12.7M for children's data), Easylife (£130K under PECR), and ongoing investigations into ad-tech and biometrics. Multinational controllers running both regimes need parallel posture: where EU and UK converge, the same evidence applies; where they diverge, per-jurisdiction artefacts are required.
Two new cross-cutting regimes overlay GDPR. The EU-US Data Privacy Framework (effective July 2023, replacing the invalidated Privacy Shield) is the primary self-certification path for US-headquartered controllers receiving EU personal data, recipient certification is verifiable on dataprivacyframework.gov and the EDPB's adequacy decision is in effect, but Schrems III is already in motion. The EU AI Act 2024 (in force August 2024, prohibited practices effective February 2025, high-risk obligations rolling through August 2026) overlays GDPR for AI use cases, Article 22 automated-decision-making and the AI Act's risk-tier classification are now linked obligations. The checklist flags both throughout.