Approved Contractor Scheme

The SIA's (Security Industry Authority) nationally respected accreditation for private security companies

The Approved Contractor Scheme (ACS) is a UK initiative for private security firms supplying licensable services. It provides independent verification of their commitment to SIA-set quality standards.

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What is the Approved Contractor Scheme?

The Approved Contractor Scheme (ACS) is a UK initiative by the Security Industry Authority (SIA) that sets high standards for private security companies supplying licensable services.

It includes thorough checks to confirm a company’s dedication to quality, following rules, and using best practices. By focusing on service quality, operational efficiency, and continual improvement, the ACS helps organisations consistently meet customer and regulatory expectations.

Joining the scheme makes your services more reliable and keeps clients happy, giving you an advantage over competitors. Getting ACS accreditation shows clients and partners that you follow top security standards, which helps build trust.

What is ACS - the Approved Contractor Scheme

Understanding the Approved Contractor Scheme

The ACS was created to help private security companies improve their services.

Over time, it has become a recognised standard of excellence in the security industry. The scheme is regularly updated to keep up with industry changes and challenges. These updates demonstrate that companies follow best practices and meet high standards.

Leadership plays a crucial role in the ACS, as it encourages organisations to make quality and excellent service a top priority at all levels. This focus helps maintain trust and reliability in security services.

Understanding ACS - Approved Contractor Scheme

Who Needs the Approved Contractor Scheme?

The ACS is useful for private security companies that want to improve their service quality.

It is particularly suited for those supplying licensable services under contract. By adopting the ACS, companies are better equipped to meet client and regulatory requirements, increasing customer satisfaction.

The scheme helps streamline operations, reduce risks, and improve service reliability. Getting accredited is great for businesses wanting to grow or improve their reputation, showing they are committed to excellence.

Being part of ACS involves the whole company and focuses on leadership and planning, which boosts efficiency and competitiveness.

Who needs ACS - Approved Contractor Scheme

Benefits of the Approved Contractor Scheme

The ACS offers several key benefits to security organisations:

  • Enhanced credibility – Demonstrates commitment to high standards and best practices.
  • Client confidence – Builds trust with clients by providing assurance of quality service.
  • Continual improvement – Promotes regular assessment and improvement of business practices.
  • Competitive advantage – Differentiates your business in the market, attracting more opportunities.
  • Improved reputation – Demonstrates that organisations are responsible.
  • Operational efficiency – Encourages streamlined processes and consistent service delivery.
  • Regulatory compliance – Supports adherence to industry regulations and legal requirements.

 

Benefits of ACS - approved Contractor Scheme

The Approved Contractor Scheme Explained

Approved Contractor Scheme Specification

The Approved Contractor Scheme (ACS) was established by the Security Industry Authority (SIA), the UK’s regulatory body for the private security industry.

Created to raise performance standards and provide new opportunities, the ACS verifies that security suppliers deliver quality services. Organisations in the scheme undergo thorough assessments to verify adherence to best practices and compliance.

The ACS is periodically updated to reflect legislative changes and industry standards. It is widely recognised, with many companies seeking accreditation to enhance their reputation, attract clients, and demonstrate commitment to high standards.

 

Approved Contractor Scheme Requirements

To achieve ACS accreditation, private security businesses must adhere to the following standards:

Fit and proper conditions:

Verify the identity and legal status of the business and check that those running it meet criminality and financial integrity checks.

Conformance to the ACS standard:

  • Strategy and leadership – Establish clear strategic goals and demonstrate strong leadership.
  • Service delivery and resource management – Implement effective processes for reliable service delivery and manage resources efficiently.
  • People management – Ensure staff are competent, supported, and compliant with legal requirements.

Regulatory compliance:

Adhere to all relevant legislation, including the Private Security Industry Act 2001, and focus on continual improvement.

Assessment:

Conduct internal and external assessments to verify compliance with ACS criteria.

By meeting these requirements, businesses can enhance their reputation and competitiveness in the security industry.

Approved Contractor Scheme Certification

ACS certification shows that your organisation meets the high standards set by the scheme, assuring customers, partners, and regulators of your consistent delivery of quality security services.

Certification involves a comprehensive assessment of your security operations and related management practices for overall excellence.

The certification journey typically includes the following steps:

  • Eligibility check – Confirm your business meets criteria such as supplying licensable security services in the UK.
  • Application submission – Register and apply online through the SIA, with key decision-makers signing the declaration.
  • Fit and proper assessment – Verify compliance with identity, criminality, financial probity, and integrity standards.
  • Pre-approval interview – Participate in an interview to assess compliance with fit and proper conditions.
  • Select an assessment body – Choose an SIA-authorised body for an independent evaluation against ACS standards.
  • Assessment against ACS standard – Complete a desk-based review and on-site audit to confirm compliance with ACS requirements.
  • Receive assessment results – If compliant, SIA will decide on granting approval.
  • Approval and registration – Approved businesses are listed on the SIA’s register and can use the ACS mark.
  • Maintain accreditation – Submit annual returns, pay fees, and undergo periodic assessments.
  • Renewal – Renew approval every three years to maintain your status.

British Assessment Bureau provides ACS accreditation for private security businesses that have had their ACS application accepted by the SIA.

Approved Contractor Scheme FAQs

What does "Approved Contractor" mean?

An “approved contractor” specifically refers to businesses that have met the ACS standard and are listed on the Security Industry Authority’s (SIA) public register.

This status indicates the individual’s or business’s reliability and commitment to security industry best practices.

Who is the Security Industry Authority?

The Security Industry Authority (SIA) is the regulatory body responsible for overseeing the private security industry in the United Kingdom.

Established under the Private Security Industry Act 2001, the SIA’s primary role is to verify that security personnel and companies meet stringent licensing and operational standards, protecting the public and enhancing the sector’s reputation.

The SIA licenses individuals working in roles such as security guards, door supervisors and CCTV operators, checking that they are qualified and fit for their positions.

The SIA also manages the Approved Contractor Scheme (ACS), which promotes best practices and continual improvement among security providers.

Do you have to join the Approved Contractor Scheme?

No, the Approved Contractor Scheme is a voluntary scheme.

However, participation can provide significant benefits, such as enhancing your reputation, demonstrating commitment to high standards, and potentially attracting more clients.

It is often chosen by security companies seeking to differentiate themselves and reassure clients of their professionalism and compliance with industry best practices.

Is the Approved Contractor Scheme free?

No – in order to join the Approved Contractor Scheme, organisations must pay an administration fee as well as an annual registration fee to remain approved under the scheme.

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