Namespace Registry Browser
Browse all registered and reserved extension namespace prefixes in the PCT ecosystem. Click any namespace to view its fields and metadata, or follow the documentation link to read the full extension specification.
The PCT specification supports extension namespaces that allow additional regulatory and sector-specific claims to be included in a Privacy Claims Token. This registry lists all 66 registered and reserved namespace prefixes.
Registry version 0.2.0 · Last updated 2026-03-21
Core Namespacesv0.1
Reserved prefixes maintained as part of the core PCT specification. These namespaces include fully defined field schemas.
x-hipaaActiveHealth Insurance Portability and Accountability Act (HIPAA)
x-doraActiveDigital Operational Resilience Act (DORA)
x-duaaActiveUK Data Use and Access Act (DUAA)
x-pecrActivePrivacy and Electronic Communications Regulations (PECR)
x-ai-actActiveEU Artificial Intelligence Act
Active Extension Namespacesv0.2+
Sector-specific and AI governance namespaces introduced in v0.2. These are actively maintained by the registrant.
x-psd2ActivePayment Services Directive 2 (PSD2) / UK Payment Services Regulations 2017
x-mifid2ActiveMarkets in Financial Instruments Directive II (MiFID II / MiFIR)
x-eu-ctrActiveEU Clinical Trials Regulation (CTR, Regulation EU 536/2014)
x-nist-csfActiveNIST Cybersecurity Framework 2.0 (2024)
x-eprivacyActiveEU ePrivacy Directive (2002/58/EC as amended) / proposed ePrivacy Regulation
x-telecomActiveTelecommunications Sector Data Obligations (multi-jurisdictional)
x-insuranceActiveInsurance Sector Data Obligations (Solvency II, IDD, NAIC model laws)
x-iotActiveInternet of Things and Connected Devices (EU CRA, UK PSTI Act, US IoT Cybersecurity Improvement Act)
x-biometricsActiveBiometric Data Processing (GDPR Article 9, Illinois BIPA, Texas CUBI, and equivalent)
x-direct-marketingActiveDirect Marketing Obligations (GDPR Art 21, CAN-SPAM, TCPA, CASL, Australia Spam Act)
x-ai-ukActiveUK AI Governance Framework (ICO AI guidance, DRCF principles, AISI)
x-ai-us-fedActiveUS Federal AI Governance (NIST AI RMF, OMB M-25-21, M-25-22)
x-ai-cnActiveChina AI Governance Regulations (Deep Synthesis, Generative AI, Algorithm Recommendations)
x-ai-caActiveCanada AI Governance (AIDA, Directive on Automated Decision-Making, OPC AI guidance)
x-ai-sgActiveSingapore Model AI Governance Framework, AI Verify, MAS FEAT Principles
x-ai-intActiveInternational AI Governance (UNESCO, OECD, G7 Hiroshima, Council of Europe CETS 225, ISO/IEC 42001)
x-nist-pfActiveNIST Privacy Framework Version 1.0 (2020)
x-fedrampActiveFedRAMP (Federal Risk and Authorization Management Program)
x-cmmcActiveCybersecurity Maturity Model Certification (32 CFR Part 170)
x-dpa-leActiveUK Data Protection Act 2018 Part 3 — Law Enforcement Processing
x-gdpr-nationalActiveGDPR national derogations and member state implementing provisions
Reserved for Contributor Registration
These namespace prefixes are reserved and open for registration by qualified practitioners in the relevant jurisdiction. Contact registry@pct.thedpg.com to register as the owner of a namespace.
x-ccpaReserved for ContributorCalifornia Consumer Privacy Act / California Privacy Rights Act (CCPA/CPRA)
x-lgpdReserved for ContributorLei Geral de Proteção de Dados (LGPD, Brazil)
x-pdpa-thReserved for ContributorPersonal Data Protection Act (PDPA, Thailand)
x-pdpb-inReserved for ContributorDigital Personal Data Protection Act 2023 (DPDP Act, India)
x-popiaReserved for ContributorProtection of Personal Information Act (POPIA, South Africa)
x-pipedaReserved for ContributorPIPEDA and provincial privacy laws including Quebec Law 25 (Canada)
x-pdpa-sgReserved for ContributorPersonal Data Protection Act (PDPA, Singapore)
x-pipa-krReserved for ContributorPersonal Information Protection Act (PIPA, South Korea)
x-appi-jpReserved for ContributorAct on the Protection of Personal Information (APPI, Japan)
x-privacy-auReserved for ContributorPrivacy Act 1988 (Cth) incorporating Australian Privacy Principles
x-pdpo-hkReserved for ContributorPersonal Data (Privacy) Ordinance (PDPO, Hong Kong)
x-pipl-cnReserved for ContributorPersonal Information Protection Law (PIPL, China)
x-pdpl-uaeReserved for ContributorFederal Personal Data Protection Law (PDPL, UAE mainland)
x-difc-dpReserved for ContributorDIFC Data Protection Law (DIFC Law No. 5 of 2020)
x-adgm-dpReserved for ContributorADGM Data Protection Regulations 2021
x-pdpl-saReserved for ContributorPersonal Data Protection Law (PDPL, Saudi Arabia)
x-pdpl-qaReserved for ContributorPersonal Data Privacy Law No. 13 of 2016 (Qatar)
x-qfc-dpReserved for ContributorQatar Financial Centre Data Protection Regulations 2021
x-pdpl-bhReserved for ContributorPersonal Data Protection Law (PDPL, Bahrain)
x-pdp-trReserved for ContributorPersonal Data Protection Law No. 6698 (KVKK, Turkey)
x-dpa-keReserved for ContributorData Protection Act No. 24 of 2019 (Kenya)
x-ndpr-ngReserved for ContributorNigeria Data Protection Act 2023 (NDPA)
x-dpa-ghReserved for ContributorData Protection Act 2012 (Act 843, Ghana)
x-pdp-tzReserved for ContributorPersonal Data Protection Act 2022 (Tanzania)
x-pdp-rwReserved for ContributorLaw No. 058/2021 on Personal Data Protection and Privacy (Rwanda)
x-dpo-egReserved for ContributorPersonal Data Protection Law No. 151 of 2020 (Egypt)
x-lfpdppp-mxReserved for ContributorFederal Law on Protection of Personal Data Held by Private Parties (LFPDPPP, Mexico)
x-lpdp-coReserved for ContributorStatutory Law 1581 of 2012 on Personal Data Protection (Colombia)
x-pdp-arReserved for ContributorLaw No. 25,326 on Personal Data Protection (Argentina)
x-lpdp-clReserved for ContributorPersonal Data Protection Law (LPDP, Chile, 2024 reform)
x-lpdp-peReserved for ContributorLaw No. 29733 on Personal Data Protection (Peru)
x-lgpd-ecReserved for ContributorOrganic Law on Personal Data Protection (LOPDP, Ecuador)
x-pdp-idReserved for ContributorLaw No. 27 of 2022 on Personal Data Protection (UU PDP, Indonesia)
x-pdp-vnReserved for ContributorDecree No. 13/2023/ND-CP on Personal Data Protection (Vietnam)
x-dpa-phReserved for ContributorData Privacy Act of 2012 (Republic Act No. 10173, Philippines)
x-pdpa-myReserved for ContributorPersonal Data Protection Act 2010 (PDPA, Malaysia)
x-privacy-nzReserved for ContributorPrivacy Act 2020 (New Zealand)
The namespace registry is sourced from the canonical registry file in the PCT specification repository. To register a new namespace or claim a reserved prefix, see the registration guidelines.