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The Security Industry Authority (SIA) is the organisation responsible for regulating the private security industry in the UK.

More about the SIA

Approved Contractor Scheme



Apply for approval

Register of Approved Contractors​​​

Latest Updates

ACS Online Achievement Record

We closed the ACS Online Achievement Record in September.

If you wish to save your year-on-year performance report, you have until this Friday (30 October) to do so. After this date the Online Achievement Record will be shut down and your data will be lost.

Go to the ACS Online Achievement Record

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Tip of the Week

Validity of Qualifications

We need to be sure that people applying for a licence have not forgotten the skills and knowledge that they learned during their training.

Read more​​​​​​​