Luxembourg’s Law of 6 February 2025 has designated the Luxembourg Commission de Surveillance du Secteur Financier (CSSF) as the competent authority for Regulation (EU) 2023/1114 on markets in crypto-assets (MiCAR), providing the national basis for supervision of crypto-asset service providers (CASPs) after MiCAR became fully applicable on 30 December 2024. The law entered into force on the day it was published in the Official Journal. The legislation equips the CSSF with supervisory and investigative powers and introduces a sanctions regime to support enforcement of MiCAR, and it also implements Regulation (EU) 2023/1113 on information accompanying transfers of funds and certain crypto-assets. It sets transitional arrangements for virtual asset service providers (VASPs) registered with the CSSF before 30 December 2024 under Luxembourg’s anti-money laundering framework, allowing them to remain on the CSSF’s VASP register until 1 July 2026 or until they are granted or refused authorisation under Article 63 of MiCAR, whichever occurs first.