Requirements for alcohol interlock installation facilitation
Article 1
The type-approval of motor vehicles with regard to alcohol interlock installation facilitation shall be subject to the requirements set out in Annex I.
Commission Delegated Regulation (EU) 2021/1243 of 19 April 2021 supplementing Regulation (EU) 2019/2144 of the European Parliament and of the Council by laying down detailed rules concerning the alcohol interlock installation facilitation in motor vehicles and amending Annex II to that Regulation (Text with EEA relevance)
Commission Delegated Regulation (EU) 2021/1243 of 19 April 2021 supplementing Regulation (EU) 2019/2144 of the European Parliament and of the Council by laying down detailed rules concerning the alcohol interlock installation facilitation in motor vehicles and amending Annex II to that Regulation (Text with EEA relevance)
Data as of 2026-07-04 · Compiled from an official source version. Later amendments or repeals may not be reflected; the official text prevails. · Read the official text ↗
Amendment to Regulation (EU) 2019/2144
Article 2
Annex II to Regulation (EU) 2019/2144 is amended in accordance with Annex II to this Regulation.
Entry into force and application
Article 3
This Regulation shall enter into force on the twentieth day following that of its publication in the Official Journal of the European Union . It shall apply from 6 July 2022.
Supplementary provisions
Technical requirements
ANNEX ISupplementary provisions
ANNEX I Technical requirements 1. Alcohol interlock installation facilitation shall allow the fitting or retrofitting of an alcohol interlock complying with European Standards EN 50436-1:2014 or EN 50436-2:2014+A1:2015. 2. The vehicle system as regards alcohol interlock installation facilitation in each motor vehicle of categories M and N shall conform to the relevant vehicle model as laid down in the alcohol interlock installation document (‘installation document’), conforming to European Standard EN 50436-7:2016. For this purpose, the installation document shall cover at least one of the options in EN 50436-7:2016 Annex C 3a, 3b or 3c. The vehicle manufacturer may provide the installation document conforming to later revisions of the European Standard, in agreement with the approval authority and the technical service. 3. Installation document 3.1. The installation document shall contain a detailed description, diagrams and images explaining the installation of an alcohol interlock, covering any of the following sets of information: (a) the information regarding battery feed, ground, vehicle ready and start enabler; (b) the information regarding battery feed, ground, vehicle ready and start-allowing or start-prohibiting input and output line, and an optional detection of propulsion capability (e.g. engine run) or vehicle moving signal line; or (c) the information regarding battery feed, ground and a data bus connection. 3.2. Any additional software, hardware or procedures necessary to allow the installation of an alcohol interlock in a standard vehicle shall be identified and indicated in the installation document. 3.3. The alcohol interlock shall be in the blocking state normally. The blocking state of the alcohol interlock shall be achieved by either an open output relay, a corresponding output signal or the corresponding digital bus message. The closure of this relay or the change of the blocking output signal into the non-blocking output signal or the transmission of the corresponding non-blocking data bus message shall occur when an accepted breath sample with an alcohol concentration below the pre-set limit has been delivered. 3.4. An installed alcohol interlock shall only intervene in the engine starting process or in allowing the vehicle to move under its own power upon the activation of the vehicle master control switch and the alcohol interlock shall not influence a running engine or a moving vehicle. 4. Access to alcohol interlock facilitation information 4.1. Vehicle manufacturers shall put in place the necessary arrangements and procedures to ensure that vehicle alcohol interlock facilitation information, in the form of relevant details of the standardised installation document, is accessible in accordance with Annex X of Regulation (EU) 2018/858. As some of the information may relate to security-related vehicle repair and maintenance information services, access to the alcohol interlock facilitation information is restricted to independent operators that comply with the procedure laid down in Appendix 3 of that Annex. 5. The vehicle manufacturer shall annex to the information document a declaration made out using the template set out in the Appendix to this Annex.
Amendment to Regulation (EU) 2019/2144
ANNEX IISupplementary provisions
ANNEX II Amendment to Regulation (EU) 2019/2144 In Annex II to Regulation (EU) 2019/2144 the row for requirement E1 is replaced by the following: ‘E1 Alcohol interlock installation facilitation Commission Delegated Regulation (EU) 2021/1243 ( *1 ) B B B B B B ( *1 ) Commission Delegated Regulation (EU) 2021/1243 of 19 April 2021 supplementing Regulation (EU) 2019/2144 of the European Parliament and of the Council by laying down detailed rules concerning the alcohol interlock installation facilitation in motor vehicles and amending Annex II to that Regulation (OJ L 272, p. 11).’
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Source: EUR-Lex (Publications Office of the EU), © European Union, reuse permitted under Commission Decision 2011/833/EU.
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