Specification Review

TOPAS will undertake a review of all Specifications on a regular basis.  The current review will be promoted on this site and Manufacturers will be invited to comment.  Please bookmark this page for information regarding reviews.

Comments should be forwarded to  enquiries@topasgroup.org.uk   using the document below

TOPAS 0601 - Specification Review Process

TOPAS0601 Appendix - comments docx:  download here


For current specification(s) review   : 

TOPAS 2540A is now in consultation stage.  For draft specification click here.  A detailed note is included which should be read in conjuction with the review click here.   Consultation end date 9th October 2020. Please use the comments sheet for responses click here.   User questionnaire click here.  

TOPAS 2500B is now in consultation stage.  For draft specification click here - first consultation end date 27th August 2020 (please use comment sheete for responses) current comments sheet with adoptions

TOPAS 2516C is currently under internal review

TOPAS 2504 & TOPAS 2505 are currently under internal review

TOPAS 2513 is currently under internal review



Please note, that where a product is previously registered against a specification, manufacturers are simply required to confirm in writing that the product remains compliant with an amended spec in order for the product registered to be migrated on the TOPAS website.  Where products are pending registration as a result of review notices, manufacturers are urged to take part in the review process.

25/8/20 TOPAS 2451 consultatioin has ended.  TOPAS 2541A is now approved and effective from 25/78/20

17/2/20 TOPAS 2523 consultation has ended.  TOPAS 2523B is now approved and effective from 17/2/20

17/2/20 TOPAS 2508 consultation has ended.  TOPAS 2508C is now approved and effective from 17/2/20

17/2/20 TOPAS 2509 consultation has ended.  TOPAS 2509B is now approved and effective from 17/2/20

22/5/19 TOPAS 2517 consultation has ended.  TOPAS 2517B is now approved and effective from 22/5/19

28/2/19 TOPAS 2516 consultation has ended.  TOPAS 2516C is now approved and effective from 28/2/19

14/2/19 TOPAS 2515 consultation has ended.  TOPAS 2515B is now approved and effective from 14/2/19

16/11/17 TOPAS 2512 consultation has ended.  TOPAS 2512B is now approved and effective from 16/11/17. 

25/5/18 TOPAS 2508 consultation has ended.  TOPAS 2508B is now approved and efffective from 19/6/18.

25/5/18 TOPAS 2130 consultation has ended.  TOPAS 2130A is now approved and effective from 19/6/18.

CONSULTATION on TOPAS 2582A PERIOD 9/3/16 - 8/6/16  UPDATE:  TOPAS began the consultation process of 2582  identifying the un-released draft of TR2582(sic) as the basis for the new TOPAS 2582.  During the consultation process and review of this draft, a number of issues were brought to light and it was determined at the June 2016 Management Board meeting not to proceed with TOPAS 2582 but instead to retain threee separate detection specifications.  Therefore the current TOPAS 2512A, 2504A, and 2505A will be reviewed according to the TOPAS process, starting with TOPAS 2512A.  Comments from the internal review on this specification are being used to inform a revision of TOPAS 2512 for circulation and comment and this will appear here with a consultation date as early as possible.

23rd March 2016 

TSRGD 2016 will come into force end 22nd April 2016

19th May 2015

All TOPAS specifications are now finalised and appear in full on the Specification page. 

30th January 2015

The first issues of TOPAS specifications are adapted from the Highways Agency specifications TR25** Series/version that they replace.  There are no changes of substance to the specifications, save that all statutory requirements have been removed from Section 1 and a new Appendix Z has been added identifying Technical File Content requirements.  Manufacturers must still comply with all statutory requirements and regulations in force as at the date of production and are responsible for ensuring this.  Where a TOPAS specification identifies a superseded standard or regulation, this should be read as requiring compliance with the most recent version and not the superseded one. 

Any discrepancies existing in the HR specifications taken over by TOPAS will be dealt with at the next round of TOPAS specification Reviews. 

This will not affect the status of any HA Type Approvals in existence or presently being requested through the HA.



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