International Standards and Conformity Assessment for all electrical, electronic and related technologies



Reference CLC/TR 50436-3:2010
Title Alcohol interlocks - Test methods and performance requirements - Part 3: Guidance for decision makers, purchasers and users
Project Number 20598
Abstract/Scope An alcohol interlock is a system comprising a breath alcohol measuring instrument and an immobiliser which may be easily installed in a motor vehicle. Before the vehicle can be started, a breath sample has to be provided to the alcohol interlock, normally through a mouthpiece. Once the breath alcohol measurement has been performed, the alcohol interlock will prevent drivers from starting the motor if they have an alcohol concentration above a predetermined limit value. This limit may be set at the legal limit of a respective country or lower. Alcohol interlocks that meet the relevant European Standards detect, for example, if the sample is delivered by a human being. They are also capable of preventing and detecting tampering with the instrument. Additional parts of the system may include identity checking or recording mechanisms. The purpose of this Technical Report is to give practical guidance for selection, installation, use and maintenance of alcohol interlocks. It is directed to all those who have an interest in alcohol interlocks as well as companies selling and installing alcohol interlocks, purchasers and users for commercial, professional or private use. The Technical Report gives information about the alcohol interlock and how it is to be used. This Technical Report primarily describes alcohol interlocks for use in vehicles as a general preventive measure in traffic safety. However, information provided may also be useful for alcohol interlocks in other applications.


Current Stage code 6060
Current Stage code date 2010-07-30
Current Stage code deadline  
Deadline date for vote 2009-12-31


Order Voucher  


IEC Technical Body  
Reference Document  
ICS 13.320 - Alarm and warning systems
43.040.10 - Electrical and electronic equipment
Keywords Alcohol; Interlock; Test; Performance
Note D135/C103: BT approved BTTF recommendation to change status from EN to TR for further stage (as decided during BTTF meeting of 2009-03-23/25)
Special National Condition(s)  


Categories - Aspects
Product Life Cycle


Deadline Date
6060 2010-07-30   export to doc file  EN  DE
5099 2010-06-04 2010-10-04  
5060 2010-05-25 2010-06-04 export to doc file  EN
5020 2010-02-19 2010-05-21 export to doc file  EN
4099 2009-07-01 2010-02-18  
4060 2008-12-16 2009-04-09 export to doc file  EN
4020 2008-07-11 2008-12-12 export to doc file  EN
3099 2008-03-25 2008-07-25  
2020 2007-05-10 2007-10-02  
2020 2007-02-07 2007-05-31  
1099 2006-04-01 2006-12-31  
1000 2005-12-13 2006-03-31  

Implementation Dates

date of Ratification (DOR) (1) 2010-06-04
date of Availability (DAV) (2) 2010-07-30
date of Announcement (DOA) (3) -
date of Publication (DOP) (4) -
date of Withdrawal (DOW) (5) -


Superseded by  
Normative reference (6)  

(1) Date of ratification (dor) date when the Technical Board notes the approval of an EN (and HD for CENELEC), from which time the standard may be said to be approved

(2) Date of availability (dav) date when the definitive text in the official language versions of an approved CEN/CENELEC publication is distributed by the Central Secretariat

(3) Date of announcement (doa) latest date by which the existence of an EN (and HD for CENELEC), a TS or a CWA has to be announced at national level

(4) Date of publication (dop) latest date by which an EN has to be implemented at national level by publication of an identical national standard or by endorsement

(5) Date of withdrawal (dow) latest date by which national standards conflicting with an EN (and HD for CENELEC) have to be withdrawn

(6) This list of normative references is purely indicative. The only official list of normative reference is the list of the published standard.