> For the complete documentation index, see [llms.txt](https://t-blocks.gitbook.io/t-blocks-documentation/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://t-blocks.gitbook.io/t-blocks-documentation/legal-framework/blockchain-laws-i-iv-2019-2024.md).

# Blockchain Laws I–IV (2019–2024)

Luxembourg has enacted four blockchain-related laws between 2019 and 2024 that establish legal certainty for the use of distributed ledger technology in financial markets.

Blockchain Law I (1 March 2019) — Amended the law on the financial sector and the law on dematerialised securities to recognise DLT-based accounts for the holding and circulation of securities. This law established that securities can be registered and transferred using blockchain or DLT, with the same legal effect as traditional book-entry registration.

Blockchain Law II (22 January 2021) — Extended the framework to cover dematerialised securities issued using DLT, including the role of central account keepers and settlement finality for DLT-based transactions.

Blockchain Law III (15 February 2023) — Further amended the securities laws to accommodate the EU DLT Pilot Regime (Regulation (EU) 2022/858), enabling DLT-based market infrastructures to operate under EU regulatory frameworks.

Blockchain Law IV (2024) — Continued refinement of the legal framework for digital securities, addressing operational resilience and interoperability requirements.

These four laws, combined with the Securitisation Law 2004, provide the legal foundation for T-Blocks' dual-rail distribution model. Instruments issued under T-Blocks Trio Fund can be registered, held, and transferred using both traditional book-entry systems and DLT-based infrastructure — with identical legal effect and enforceability under Luxembourg law.

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