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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

Latest Updates

Changes to our Approved Contractor Scheme

The changes arising from last year's review of the ACS came into effect on Monday 1 April.

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Tip of the Week

Completing your application at the post office

When you apply for an SIA licence you may be asked to complete your application at a post office. Not all post offices offer this service.

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