Source: https://peppol.helger.com/public/locale-en_US/menuitem-en16931;jsessionid=81553597AE36FC1BF6FFCC269BA2A4CB
Timestamp: 2019-06-17 03:28:13
Document Index: 179515083

Matched Legal Cases: ['art 1', 'art 2', 'art 3', 'art 3', 'art 3', 'art 3', 'art 4', 'art 5', 'art 6', 'arts 1', 'arts 3']

PEPPOL practical - EN 16931 - CEN/TC 434
This page tries to give a rough overview on CEN/TC 434 and EN 16931, how it belongs together and where to find what.
Note: this is not an official page. This is just what I'm collecting...
The EN 16931-1:2017 was published on October 17th 2017 in the OJ. That means that since April 18th 2019 most public procuring entities must be able to accept e-Invoices complying to the UBL and CII syntax requirements defined in CEN/TS 16931-3-2 and CEN/TS 16931-3-3!
Structure of work
Working with the EN 16931
How to get the norm?
In the beginning was directive 2014/55/EU. Article 3 starts with:
The Commission shall request that the relevant European standardisation organisation draft a European standard for the semantic data model of the core elements of an electronic invoice (the ‘European standard on electronic invoicing’).
This lead CEN to start PC 434 (Project Committee) which was later transfered to a TC (Technical Committee) → CEN/TC 434.
The TC had 6 working groups concerning with the following topics:
A European standard (EN) on the semantic data model for the core elements of an electronic invoice
Created: EN 16931-1:2017 Part 1: Semantic data model of the core elements of an electronic invoice
A Technical Specification (TS) on a limited number of invoice syntaxes (formats) which fully comply with the EN
Created: CEN/TS 16931-2:2017 Part 2: List of syntaxes that comply with EN 16931-1
A Technical Specification (TS) on the syntax bindings, i.e. information specifying how the semantic data model could be represented in the listed syntaxes (formats) and their automatic validation artefacts
CEN/TS 16931-3-1:2017 Part 3-1: Methodology for syntax bindings of the core elements of an electronic invoice
CEN/TS 16931-3-2:2017 Part 3-2: Syntax binding for ISO/IEC 19845 (UBL 2.1) invoice and credit note
CEN/TS 16931-3-3:2017 Part 3-3: Syntax binding for UN/CEFACT XML Industry Invoice D16B
CEN/TS 16931-3-4:2017 Part 3-4: Syntax binding for UN/EDIFACT INVOIC D16B
A Technical Report (TR) covering the guidelines on interoperability of electronic invoices at the transmission level, taking into account the need of ensuring the authenticity of the origin and the integrity of the electronic invoices’ content
Created: CEN/TR 16931-4:2017 Part 4: Guidelines on interoperability of electronic invoices at the transmission level
A Technical Report (TR) covering the guidelines on the use of sector or country extensions (as described in the Recommendation of the European Multi-stakeholder Forum on e-Invoicing) in conjunction with the European standard, including a methodology to be applied in the real environment
Created: CEN/TR 16931-5:2017 Part 5: Guidelines on the use of sector or country extensions in conjunction with EN 16931-1, methodology to be applied in the real environment
A Technical Report (TR) covering the result of the test of the European standard with respect to its practical application for an end user
Created: CEN/TR 16931-6:2017 Part 6: Result of the test of EN 16931-1 with respect to its practical application for an end user
From a practical point of view this norm means, that all public entities performing public procurement cannot reject electronic invoices from April 18th 2019 if they are retrieved in UBL or CII formats complying to the norm. Certain receivers have an additional 12 month to comply to the requirements, ending up on April 18th 2020.
Because life would be too easy if EN 16931 was a "one size fits all" solution, there are already a lot of so called CIUSs developed. A CIUS is an additional specification on top of EN 16931-1:2017 that narrows certain fields for certain use cases. The methodology how a CIUS is defined, can be found in CEN/TR 16931-5:2017.
An unofficial self-declaration based list of CIUSs is provided by CEF. One upcoming task of CEN/TC 434 is to establish an official registry of CIUSs.
Another project in CEN/TC 434 tries to setup a more elaborate registry for CIUS, Extension and Code list. The current effort can be seen at https://www.helger.com/registry434/ but please bare in mind, that this is work in progress. Details will follow.
You should be able to download the standard (at least parts 1 and 2) for free from your local standardization body. E.g. at Austrian Standards (ASI) ÖNORM EN 16931-1: 2017 11 01 and ONR CEN/TS 16931-2: 2017 10 15 can be downloaded free of charge, whereas parts 3, 4, 5 and 6 are payable documents.
If you are impatient and would ask me what documents to buy I would suggest the following ones:
One or more of CEN/TS 16931-3-2:2017, CEN/TS 16931-3-2:2017 or CEN/TS 16931-3-3:2017 - depending on what you want to implement
CEN/TR 16931-5:2017
Mostly it is about validating, if a UBL or CII documents fulfills all the requirements from the norm. Therefore the following steps need to be performed:
Validate the e-Invoice against the XML Schema of UBL 2.1 or CII D16B - depending on the namespace URI of the XML root element
Apply the Schematron rules for the correct syntax. Schematrons are currently available from GitHub but the licensing of these artefacts is still under discussion. A fully working open source validation engine is available at https://github.com/phax/phoss-validator/ licensed under the business friendly Apache 2 license. It supports the official EN 16931 validation artefacts for UBL, CII and XML EDIFACT invoices besides a lot of different standards.
If you need to follow a certain CIUS, apply the Schematrons of the CIUS in the correct order as well. As there are currently no published CIUSs, there is also no predefined tool support for this.
CEN Comité Européen de Normalisation - European Committee for Standardization
CEN/TC CEN Technical Committee - working group
CII UN/CEFACT Cross Industry Invoice - XML representation of an invoice
CIUS Core Invoice User Specification - A specification based on EN 16931-1:2017 that defines certain elements more narrow
EN European Norm - has tighter binding than TR and TS
EN 16931 European Norm instance with ID 16931 - this is the EN that contains the semantic data model for electronic invoices in Europe
TR Technical Recommendation - has lower binding than EN and TS
TS Technical Specification - binding between EN and TR
UBL ISO/IEC 19845 Universal Business Language - XML representation of an invoice
This chapter contains some external links that you might consider helpful:
Assessment of the European Standard on electronic invoicing, according to Directive 2014/55/EU
Official EN/2014/55 documents
Official CEN/TC 434 page
CEN/TC 434 Open Source components on GitHub
OASIS UBL 2.1
Complete OASIS UBL 2.1 download package
CII schemas page
Complete XML Schemas 16B (SCRDM - CII)
ph-bdve - Java Open Source Business Document Validation Engine