Luxembourg Financial Regulatory News:
The Circular CSSF 26/912 serves as an official notice from Luxembourg’s financial regulatory authority to formally annul Circular IML 91/75. This action updates the regulatory landscape for undertakings for collective investment (UCIs) by removing outdated rules originally established under the Law of 30 March 1988. The authority explains that many previous requirements have become obsolete due to newer national and European Union legislation or have been superseded by updated administrative policies. Consequently, this new circular ensures that the industry operates under a modern framework by eliminating redundant or conflicting guidelines. The directive was issued in May 2026 and carries immediate legal effect for all relevant financial entities and their overseers.
Summary of Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
Circular CSSF 26/912, issued on 22 May 2026, officially repeals Circular IML 91/75. This regulatory action marks the formal conclusion of a framework that governed Luxembourg undertakings for collective investment (UCI) subject to the Law of 30 March 1988. The repeal is driven by the evolution of the legal landscape, the introduction of newer CSSF circulars, and the alignment with contemporary national and European Union regulations. The circular takes effect immediately, impacting all Luxembourg UCIs and associated entities involved in their operation and oversight.
Overview of Regulatory Action under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The primary purpose of Circular CSSF 26/912 is the “revision and remodelling of the rules” applicable to Luxembourg UCIs. By repealing Circular IML 91/75, the Commission de Surveillance du Secteur Financier (CSSF) acknowledges that the previous regulatory instructions have been superseded by more modern legal and administrative standards.
Affected Entities under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The circular is addressed to a broad range of stakeholders within the Luxembourg financial sector, specifically:
- All Luxembourg undertakings for collective investment (UCIs).
- All entities and individuals participating in the functioning of these undertakings.
- All entities and individuals responsible for the control and oversight of these undertakings.
Rationale for the Repeal under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The CSSF identifies several key factors that rendered Circular IML 91/75 obsolete. The legal framework governing UCIs has undergone significant transformation since the original publication of IML 91/75, leading to the following conditions:
- Partial Supersession: Various chapters of the original circular had already been repealed and replaced by newer, specific CSSF circulars over time.
- Regulatory Evolution: Changes in national legislation and the implementation of European Union rules have made certain aspects of IML 91/75 redundant or non-compliant with higher-level law.
- Integration into Practice: Several provisions of the old circular have been transitioned into the CSSF’s standard administrative practices, removing the need for them to remain in a separate circular format.
Implementation and Governance under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The document outlines the administrative specifics of the repeal, ensuring a clear transition for the industry.
Key Administrative Data under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
| Attribute | Detail |
| Reference Number | Circular CSSF 26/912 |
| Date of Issuance | 22 May 2026 |
| Effective Date | Immediate effect |
| Legal Basis | Law of 30 March 1988 on undertakings for collective investment |
Conclusion
Circular CSSF 26/912 serves as a formal cleanup of the regulatory environment, removing an outdated framework (IML 91/75) that no longer aligns with the current legal and European Union standards. Its immediate entry into force mandates that all relevant parties now rely exclusively on the modern CSSF circulars and administrative practices that have replaced the 1991 rules.
This news under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”) can be considered beneficial under CSSF-Circulars, Credit Institutions News, Explanation, IFMs (AIFMs, ManCos) News, Investment Firms News, PFS/PSF News, Undertakings for collective investment (UCIs).
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What the Repeal of Luxembourg’s Longest-Standing Fund Rule Means for You under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
In the sophisticated machinery of global finance, much of the structural integrity we rely upon is maintained by “invisible” layers of regulation. These foundational texts often sit quietly in the background for decades, providing the bedrock for trillions of euros in assets. Yet, for the modern, tech-driven fund environment, these legacy rules can eventually become a source of friction rather than stability—a form of “regulatory archaeology” that complicates compliance without adding value.
On May 22, 2026, the Commission de Surveillance du Secteur Financier (CSSF) performed a necessary act of operational streamlining. By issuing Circular CSSF 26/912, the regulator officially retired Circular IML 91/75. The repeal of a document that has served as a cornerstone for Luxembourgish Undertakings for Collective Investment (UCI) for thirty-five years is more than a clerical update; it is a landmark moment in the evolution of the Grand Duchy’s financial landscape.
A 35-Year Legacy Sets in the Digital Age under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
Circular IML 91/75 was far more than a guideline; it was the definitive standard for UCI rules established under the Law of 30 March 1988. To understand its weight, one must recall the financial world of 1991—an era that predated digital passporting and the transformative UCITS III reforms. At its inception, the circular was designed to organize a burgeoning market under a specific national framework that has since been superseded by the Laws of 2002 and 2010.
Its retirement reflects the sheer scale of change the industry has undergone, shifting from localized “remodelling” to a highly integrated global system. The CSSF’s decision marks the final closing of a chapter that has lasted nearly four decades:
“This circular repeals Circular IML 91/75 related to the revision and remodelling of the rules to which Luxembourg undertakings governed by the Law of 30 March 1988 on undertakings for collective investment (‘UCI’) are subject.”
Exorcising the “Shadow” Evolution of Rules under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The most compelling aspect of this repeal is the admission that the circular had effectively become a “ghost rule” long before this formal announcement. In the high-stakes world of compliance, regulation often moves faster in practice than it does on paper, creating a “shadow evolution” where administrative reality outpaces the written code.
For years, the industry has navigated three factors that rendered the 1991 text obsolete:
- Replacement by Modern Frameworks: Numerous chapters of the original text had already been explicitly replaced by modern CSSF circulars better suited to current market structures.
- Regulatory Overlap: The relentless expansion of European Union rules and updated national legislation created a layer of “double regulation” that made the old text redundant.
- Administrative Practice: Most critically, many procedures once dictated by IML 91/75 were long ago absorbed into the CSSF’s daily “soft law” and administrative practices.
For compliance officers, this repeal is a welcome relief. Keeping “dead” rules on the books creates unnecessary audit risk and maintains a “hidden” knowledge gap between established firms and new market entrants. By formalizing this repeal, the CSSF is increasing transparency and ensuring the legal framework reflects current standards rather than historical tradition.
The “Immediate Effect” Power Move under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The implementation of Circular CSSF 26/912 was handled with a decisiveness that signals a unified regulatory front. While many regulatory shifts offer multi-year transition periods, this circular entered into force with immediate effect upon its publication on May 22, 2026.
This “power move” suggests that the CSSF views the industry as already being in full alignment with modern practices, making a transition period unnecessary. This clean break carries the collective weight of the CSSF Executive Board, signed by Pascale TOUSSING, Claude WAMPACH, Marco ZWICK, Jean-Pierre FABER, and Director General Claude MARX. By removing the “dead wood” of an obsolete circular without delay, the leadership is signaling a commitment to a leaner, more agile regulatory environment.
Paying Down Regulatory Debt under Circular CSSF 26/912: Repeal of Circular IML 91/75 related to the revision and remodelling of the rules in Luxembourg on undertakings for collective investment (“UCI”)
The journey from 1991’s “remodelling” to 2026’s “repeal” represents the maturation of Luxembourg as a global financial titan. Just as software developers must manage “technical debt,” regulators must eventually pay down their “regulatory debt”—the accumulation of outdated rules that create drag on innovation and efficiency.
The CSSF’s action is a calculated move to ensure the Grand Duchy remains the gold standard for fund hubs by prioritizing utility over heritage. As we move toward an era of increasingly automated compliance and real-time oversight, the industry must continue to identify and prune these legacy remnants.
In an era of instant data and cross-border oversight, how many other 30-year-old “ghost rules” are still haunting your compliance manual—and who will have the courage to exorcise them next?
