National foreword

This British Standard is the UK implementation of EN 17074:2026. It supersedes BS EN 17074:2019, which is withdrawn.

The UK participation in its preparation was entrusted to Technical Committee B/520, Glass and glazing in building.

A list of organizations represented on this committee can be obtained on request to its committee manager.

Contractual and legal considerations

This publication has been prepared in good faith, however no representation, warranty, assurance or undertaking (express or implied) is or will be made, and no responsibility or liability is or will be accepted by BSI in relation to the adequacy, accuracy, completeness or reasonableness of this publication. All and any such responsibility and liability is expressly disclaimed to the full extent permitted by the law.

This publication is provided as is, and is to be used at the recipient’s own risk.

The recipient is advised to consider seeking professional guidance with respect to its use of this publication.

This publication is not intended to constitute a contract. Users are responsible for its correct application.

Compliance with a British Standard cannot confer immunity from legal obligations.

This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 November 2026.

This European Standard was approved by CEN on 24 August 2026.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.

This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and United Kingdom.

European foreword

This document (EN 17074:2026) has been prepared by Technical Committee CEN/TC 129 “Glass in building”, the secretariat of which is held by NBN.

This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2027, and conflicting national standards shall be withdrawn at the latest by April 2027.

Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN shall not be held responsible for identifying any or all such patent rights.

This document is read in conjunction with EN 15804:2012+A2:2019.1

This document supersedes EN 17074:2019.

EN 17074:2026 includes the following significant technical changes with respect to EN 17074:2019:

exclusion of glass blocks from the scope of this version of the standard;
clearer definitions of different cullet types and modification of their names;
removal of product stages A’1, A’2 and A’3;
introduction of declared unit;
inclusion of the reference to EN 17416:2021;
clearer guidelines for module D;
clearer application rules for different cullet types;
introduction of allocation rules (co-product allocation and allocation procedure for reuse, recycling and recovery);
clarification of the product information in the EPD.

Any feedback and questions on this document should be directed to the users’ national standards body. A complete listing of these bodies can be found on the CEN website.

According to the CEN-CENELEC Internal Regulations, the national standards organisations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and the United Kingdom.

1 Scope

This document provides complementary product category rules (c-PCR) for Type III environmental product declarations (EPD) for flat glass and channel shaped glass products for use in buildings and construction works. It describes stages of product’s life cycle considered in the EPD and the processes included in life cycle stages.

Glass-block products are excluded from the scope. All other glass products i.e. intermediate and finished products, intended to be used in buildings and construction works, are in the scope of this document.

Examples of glass products covered by this c-PCR are listed in Annex H.

2 Normative references

3 Terms and definitions

4 Abbreviations

5 General aspects

5.1 Objective of the Core PCR

5.2 Types of EPD with respect to life cycle stages covered

5.3 Comparability of EPD for construction products

5.4 Additional environmental information

5.5 Ownership, responsibility and liability for the EPD

5.6 Communication formats

6 Product category rules for LCA

6.1 Product category

6.2 Life cycle stages and their information modules to be included

6.3 Calculation rules for the LCA

6.4 Inventory analysis

6.5 Impact assessment

7 Content of the EPD

7.1 Declaration of general information

7.2 Declaration of environmental indicators derived from LCA

7.3 Scenarios and additional technical information

7.4 Additional information on release of dangerous substances to indoor air, soil and water during the use stage

8 Project report

9 Verification and validity of an EPD

Bibliography