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STS – Legal Framework

Basic structure of the new regulation

  • Regulations on securitisation are combined in a single regulation applicable to all areas of the financial markets - the Securitisation Regulation.
  • The Securitisation Regulation entered into force in January 2018 and applies to all new issues from 1 January 2019.
  • Securitisation is therefore regulated uniformly throughout Europe, sector-specific regulations such as CRR, SolvV or the MMF Regulation refer to the Securitisation Regulation.
  • For transactions issued before 1 January 2019, transitional provisions apply until 31 December 2019 for capital backing in accordance with CRR, in which the old risk weights may still be applied by bank investors.
  • From 1 January 2020, the new capital adequacy requirements will then apply uniformly to all bank investors.
  • For all outstanding and newly issued transactions, lower risk weights for capital adequacy will apply if an STS notification is made in accordance with Article 27 of the Securitisation Regulation

The new regulation consists mainly of two parts:

First, the ’EU REGULATION 2017/2402 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 12 December 2017’ (’Securitisation Regulation’) defines a general framework for all securitisations and additionally establishes a specific framework for simple, transparent and standardised securitisations (STS). For the first time, a uniform set of rules for securitisations applies to all financial market segments throughout Europe. Sector-specific regulations (in particular, CRR, SolvV and MMF) refer to the Securitisation Regulation and regulate relevant matters for the respective industry. Issues previously regulated in the CRR on the subject of securitisation that are to apply to all regulated market participants in future have been transferred from the CRR to the Securitisation Regulation.

Second, from the perspective of banks, the ’EU REGULATION 2017/2401 OF THE EUROPEAN PARLIAMENT AND OF THE COUNCIL of 12 December 2017 amending Regulation (EU) No. 575/2013 on prudential requirements for credit institutions and investment firms’, colloquially always referred to as CRR, is particularly relevant. Above all, the hierarchy of rating models and capital weights has been changed.

Content and control horizon

The new regulations (Securitisation Regulation and CRR) stipulate the following:

Securitisation Regulation

  • A detailed framework for all securitisations, whether synthetic or true sale, ABS, or ABCP transactions. This framework includes
    • the essential definitions
    • essential transparency requirements
    • risk retention issues, and
    • basic requirements for the portfolio to be securitised;
  • The special requirements for ‘STS securitisations’, separated into requirements for simplicity, transparency and standardisation;
  • The rules and procedures to be followed in the ‘notification’ (STS notification) of securitisations as well as the sanctions and sanction paths in the event of non-compliance with the rules.



  • The rules and approaches to be applied for the risk weighting of securitisation positions with banks, whether as originator or investor, differentiated into STS and non-STS securitisations;

  • The hierarchy of applicable approaches has changed significantly in comparison with the previously applicable CRR regulations, dependence on external ratings is to be reduced and, by recalibrating the risk weights, clipping effects caused by sudden increases in capital requirements are to be avoided;

The new securitisation rules will apply not only to banks but to all relevant financial market segments where references to the Securitisation Regulation can be found in all other relevant regulations. As a result, there is a uniform Europe-wide set of regulations for funds, insurance undertakings etc.

With the new version of the entire securitisation rules, the EU Commission, EU Parliament and European Council are taking account of the fact that securitisations are an important component of well-functioning financial markets. A solidly structured securitisation is an important instrument for diversifying sources of finance and promotes a broader allocation of risk in the European financial system. Securitisation thus contributes to improving the efficiency of the financial system and to making the conditions of the real economy more stable in a financing environment dominated by banks.

For this reason - as stated in the foreword to the regulation - the establishment of a simple, transparent and standardised securitisation market is a core component of the Capital Market Union and contributes to the EU Commission's priority objective of supporting job creation and the return to sustainable growth in Europe.

The new regulation sets out to regulate securitisation as a capital market instrument consistently, i.e. from the originator of the securitised asset to the investor, in accordance with uniform criteria.

Implementation of new regulations and national legislation

The Securitisation Regulation as Level 1 regulation of the EU applies directly in all EU member states without the need for implementation and concretisation into national law. Nevertheless, the German legislator, for example, has updated relevant areas in an implementation law (e.g. in the Banking Act) and regulated the tasks required by the Securitisation Regulation (e.g. the designation of the competent national supervisory authorities).

In order to achieve a uniform and clear implementation of the new regulation throughout Europe, the Securitisation Regulation requires ESMA and EBA to issue numerous Level 2 regulations in the form of RTS and ITS (Regulatory and Implementing Technical Standards) as well as Guidelines (Level 3 Regulation). In particular, the extensive STS criteria need to be specified in terms of how they are to be interpreted and how compliance with the STS criteria can be demonstrated and, if necessary, verified by an independent third party verifier.

In addition, the three European supervisory authorities EBA, ESMA and EIOPA coordinate their work and that of the competent national authorities within the Joint Committee of European Supervisory Authorities in order to ensure cross-sectoral coherence and to assess practical issues related to the Securitisation Regulation in general and STS securitisations in particular.

All documents at a glance

Securitisation Regulation 

Level of regulationTypeDocument/topicDateValid fromEnglishGerman
1RegulationSecuritisation Regulation (EU) 2017/2402, amended by (EU) 2021/557; current consolidated version28 Dec 20179 Apr 2021PDF   762KBPDF  750KB
2 (ESMA)RTSSTS notification information12 Nov 201923 Sep 2020PDF  667KBPDF  683KB
2 (ESMA)ITSSTS notification template12 Nov 201923 Sep 2020PDF  570KBPDF  573KB
2 (EBA)RTSHomogeneity15 Feb 20246 Mar 2024PDF  164KBPDF  171KB
2 (EBA)RTSRisk retention07 July 20237 Nov 2023PDF  592KBPDF  602KB
2 (ESMA)RTSThird party verification5 Feb 201918 June 2019PDF  415KBPDF 422KB
2 (ESMA)RTSDisclosure, information and details incl. annexes16 Oct 201923 Sep 2020PDF  1,7MBPDF  1,8MB
2 (ESMA)ITSDisclosure, format and templates29 Oct 201923 Sep 2020PDF  787KBPDF  798KB
2 (ESMA)RTSSecuritisation repository – operational standards29 Nov 201923 Sep 2020PDF  579KBPDF  584KB
2 (ESMA)RTSSecuritisation repository – registration29 Nov 201923 Sep 2020PDF  612KBPDF  627KB
2 (ESMA)ITSSecuritisation repository – format application 29 Nov 201923 Sep 2020PDF  527KBPDF  529KB
2 (EBA)RTSPerformance-related triggers22 Mar 202411 Apr 2024PDF  493KBPDF  498KB
2 (EBA)RTSSustainability disclosure for STS securitisations, final Draft25 May 2023
PDF  538KB 
3 (EBA)GuidelinesNon-ABCP STS criteria12 Dec 201815 May 2019PDF  693KB 
3 (EBA)GuidelinesABCP STS criteria12 Dec 201815 May 2019PDF  1,1MB 
3 (EBA)GuidelinesSynthetic on-balance sheet STS criteria, Draft21 Apr 2023[open]PDF  808KB 
(ESMA)Q&AOn the Securitisation Regulation13 Jul 2023n.a.PDF  1,6MB 
(ESAs)Q&AJoint Committee Q&As17 Feb 2023n.a.PDF  414KB 
(ESAs)OpinionJoint Opinion on jurisdictional scope25 Mar 2021n.a.PDF  348KB 


Capital markets regulation

Level of regulationTypeDocument/topicDateValid fromEnglishGerman
1RegulationCRR amendments (EU) 2017/240112 Dec 20171 Jan 2019PDF 1,6MBPDF 1,6MB
1RegulationRegulation (EU) 2021/55831 Mar 20219 Apr 2021PDF 631KBPDF 637KB
LCR amendments (EU) 2018/162013 Jul 201830 Apr 2020PDF 462KBPDF 472KB
1RegulationSolvency II STS amendments (EU) 2018/330201 Jun 20181 Jan 2019PDF 427KBPDF 359KB
1RegulationMMF regulation (EU) 2017/113114 Jun 201720 Jul 2017/21 July 2018PDF 641KBPDF 660KB
1RegulationMMF amendments(EU) 2018/99010 Apr 201821 Jul 2018/1 Jan. 2019PDF 566KB


1RegulationCRR "consolidated"27 Jun 2019n.a.PDF 4,1MBPDF 4,2MB


Overview of all regulatory texts

In the following we have compiled the current regulatory texts in English and - if available - in German:

The new Securitisation Regulation

The Securitisation Regulation

  1. Defines securitisation-relevant terms uniformly;
  2. Defines the requirements that apply uniformly to all securitisations;
  3. Defines the specific requirements applicable to all STS securitisations;
  4. Regulates the third party verification process and the responsibility of the competent authority for the STS third party verification;
  5. Establishes the monitoring and sanction process for non-compliance.
Adopted byDocumentDateStatusEnglishGerman
European Parliament and the European CouncilSecuritisation Regulation (EU) 2017/2402, amended by (EU) 2021/557; current consolidated version28 December 2017in forcePDF 762KBPDF 750KB


Level 2 Regulations (RTS)

Furthermore, the Securitisation Regulation contains various authorisations for what are known as Level 2 regulations for the European supervisory authorities ESMA and EBA commissioned by the EU Commission to prepare drafts for Regulatory Technical Standards (RTS), which are to be put into final effect by the EU Commission once they have been issued.

The ESMA drafts relate to the implementation of the Regulation and thus cover the requirements for third-party verification, the STS notification by the originator, sponsor or securitisation special purpose vehicle and the implementation of the transparency requirements as laid down in the Securitisation Regulation:

The preparation of the RTS for risk retention and for the homogeneity requirements for the portfolio to be securitised was delegated to EBA:

Level 3 Regulation (Guidelines)

Furthermore, it is the responsibility of the EBA to ensure that STS requirements are interpreted and applied uniformly throughout Europe.

Questions & Answers

In order to assist market participants in the uniform and compliant application of the new rules, the supervisory authorities are publishing Q&A Reports on a regular basis.

Supervisory authorityDocumentDateStatusEnglish
ESMAQuestions and Answers, On the Securitisation Regulation13 Jul 2023Continuous updatePDF   1,6MB
JCJoint Committee Q&As relating to the Securitisation Regulation17 Feb 2023Continuous updatePDF   414KB


Securitisation Regulation and other regulations

Capital adequacy in the CRR

The CRR contents for securitisations have also been amended. All securitisation-relevant definitions have now been uniformly incorporated into the STS Regulation and the rules for capital adequacy for investors in securitisation positions have been fundamentally revised and changed. These rules are contained in the following documents:

Adopted byDocumentDateStatusEnglishGerman
European Parliament and the European CouncilCRR amendments (EU) 2017/240112 December 2017in forcePDF 1,1MBPDF 1,1MB


Solvency II

The Solvency II Directive (2009/138/EC (1)) introduced a modernised and risk-based supervisory framework for insurance and reinsurance undertakings in the European Union. A delegated Commission Regulation containing dedicated implementing provisions for Solvency II, including risk calibrations for the calculation of capital requirements for certain categories of assets, was adopted by the Commission on 10 October 2014.

This legal framework already contained provisions for securitisations, differentiating between Type 1 and Type 2 securitisation products. However, the requirements for Type 1 products were not necessarily in line with the market, with the result that only a few transactions could meet them at all. In contrast, the capital requirements for Type 2 products were prohibitively high.

With the aim of a uniform legal framework for securitisations under the new Securitisation Regulation, a number of amendments to the delegated act on Solvency II have also become necessary:

  • First, the definitions of securitisation used in the delegated Solvency II act had to be adapted to the definitions of the Securitisation Regulation.
  • Second, due to the direct applicability of the provisions on risk retention and due diligence in the Securitisation Ordinance, the corresponding provisions in Solvency II had to beamended.
  • Third, the capital calculations for insurance investments in securitisations had to be amended.
Supervisory authorityDocumentDateStatusEnglishGerman
COMMISSION DELEGATED REGULATIONSolvency II STS Amendments (EU) 2018_3302 1 June 2018in forcePDF 427KBPDF 359KB


Money Market Fonds (MMF)

Regulation (EU) 2017/1131 on Money Market Funds (MMFs) was published on 14 June 2017. Its objective is to preserve the integrity and stability of the internal market. It aims to make money market funds more resilient and to limit contagion to other financial institutions. The 2017 MMF Regulation already contains references to STS securitisations as eligible investments.

At the time of the adoption of the Money Market Funds Regulation, the Securitisation Regulation had not yet been completed. The Commission was therefore empowered to adopt additional requirements for STS investments with regard to reverse repo transactions, credit quality assessment and criteria for eligible STS ABS or ABCP investments. This has since been implemented with the MMF STS Amendments of 10 April 2018.

Adopted byDokumentDatumStatusEnglischDeutsch
European Parliament and the European CouncilOrdinance (EU) 2017/1131 Money Market Funds, MMF 14 June 201714 June 2017In forcePDF 641KBPDF 660KB
European Parliament and the European CouncilMoney Market Funds Regulation STS-amendments 10 April 201810 April 2018In forcePDF 566KBPDF 424KB


STS securitisations in the LCR

    On 13 July 2018, the EU Commission published its delegated act on the treatment of STS securitisations in the LCR (Liquidity Coverage Ratio). The possibility of taking STS securitisations into account and including them in the LCR is in line with the objectives formulated by the legislator in the new Securitisation Ordinance.

    However, there were also critical comments from the market:

    • Transition period:
      The new LCR rules will enter into force Europe-wide upon adoption, are to be applied from 30 April 2020 and require compliance with the STS criteria. Despite this transitional period, however, there is no grandfathering provision for currently LCR-capable transactions that do not involve subsequent STS reporting under Article 27 of the Securitisation Regulation.
    • Consideration at Level 2A
      STS as a premium segment rightly places extensive requirements on securitisations, but their exclusive representation in LCR Level 2B does not recognise this approach.
    • ABCP
      Under the same rationale, the non-consideration of fully-supported Asset Backed Commercial Paper (ABCP) is not comprehensible.
    Adopted byDocumentDateStatusEnglishGerman
    COMMISSION DELEGATED REGULATIONLCR STS amendments13 July 2018In force, applicable from 30 Apr 2020 onwardsPDF 462KBPDF 472KB