Approved Contractor Scheme

The Private Security Industry Act 2001 requires the SIA to establish a "system of inspection for providers of security services, under which those organisations who satisfactorily meet the agreed standards may be registered as approved, and may advertise themselves as such".

The objective of the SIA's Approved Contractor Scheme is to raise performance standards and to assist the private security industry in developing new opportunities. The scheme is voluntary and was developed in consultation with representatives from across the industry; it only covers those parts of the industry that are regulated by the SIA and the Private Security Industry Act 2001 (as amended). There is a single scheme, with sector-specific approval based on a relevant set of qualifying criteria.


2018 ACS Review

We have completed a review of our ACS. The changes arising from that review came into effect on 1 April 2019.

Find out more

It is an offence for a company to claim it is an approved contractor when it is not; this includes indirectly claiming to be an approved contractor by displaying the ACS accreditation mark. The penalty is a fine of up to £5,000.

Need more information?

If you have any enquiries regarding the ACS please submit these through your online business account (select 'Contact the SIA' and then 'I want to make a business enquiry'). If you do not have a business account you can register for one by following the link below.

Register for an online business account- this link opens in a new window

Or you can call us on 0300 123 9298.

This telephone number is intended for the use of our approved contractors and other businesses. Individual licence holders or applicants should contact us through their online account or the 'Contact Us' form on this website. If you need to speak to us you can send us a message using the phrase “call me” and providing your telephone number.

We regret that calls to this line from individual applicants or licence holders may experience long waiting times.