Guidance

Maintaining your ACS approval

An SIA approved contractor is assessed every year, must inform us of significant changes to the company, and must use the ACS mark correctly.

Documents

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Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmaster@sia.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Request an accessible format.
If you use assistive technology (such as a screen reader) and need a version of this document in a more accessible format, please email webmaster@sia.gov.uk. Please tell us what format you need. It will help us if you say what assistive technology you use.

Details

SIA approved contractors must undergo regular assessment and must keep us informed of any significant changes to the company.

Read 鈥楶reparing for standard route annual assessments鈥� to understand what the standard route annual assessment involves, when you must complete it, and how to change the date of your assessment.

Read 鈥楬ow to use the ACS accreditation mark鈥� to understand what the conditions and rules of using the ACS accreditation mark.

Use the 鈥楪uidance on transferring between ACS Assessment Schemes鈥� to understand how and when you can transfer between the standard and passport routes to approval.

Use the 鈥楪uidance on business entities and business name changes鈥� to understand how a change to your business may affect its ACS approval.

Use the 鈥楥hange of circumstances form鈥� to tell us about significant changes to your business that are relevant to your ACS approval.

Use the 鈥楢bsence of designated security service contracts policy鈥� to understand what we will do if you no longer provide security services in an activity for which you are approved.

Updates to this page

Published 28 September 2020
Last updated 31 March 2025 show all updates
  1. The PDF attachment 'ACS approval: Annual assessment guidance' and the HTML attachment 'ACS approval: Guidance on Standard route assessment dates' have both been deleted. Their contents has been combined and updated into a new HTML attachment called 'ACS approval: Preparing for standard route annual assessment'.

  2. The PDF 'ACS approval: Guidance on using the ACS accreditation mark' has been removed and replaced with an updated HTML file.

  3. Replaced the 'ACS approval: Explanation of assessment due date' PDF document with the updated HTML version 'ACS approval: Guidance on Standard route assessment dates'.

  4. Replaced the 'ACS approval: Guidance on transferring between ACS assessment schemes' PDF document with an updated HTML version.

  5. First published.

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