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Contracts & Accreditation27 January 2026 · 4 min read · Updated 27 September 2026

The Approved Contractor Scheme, and whether to join

The SIA's Approved Contractor Scheme is voluntary. It is also, for a growing share of the market, the difference between being able to bid and not — public sector buyers, large facilities management contracts and many corporate clients specify it, and a contractor without it is excluded before price is discussed.

What it actually assesses

The scheme assesses the business rather than the officers. Screening and vetting processes, training, management structures, how complaints are handled, how performance is monitored, commercial stability. Licensing is assumed rather than assessed — an approved contractor is expected to hold that together as a matter of course.

Which is why contractors approaching it discover that the operation is broadly fine and the evidence is scattered. Screening happens and is recorded inconsistently. Training is delivered and not documented. Policies exist in practice and not on paper. The current requirements are published by the SIA, are revised, and are the authority — what is worth knowing operationally is that the gap is usually documentation rather than practice.

The hardest part is demonstrating management, not compliance

Contractors expect the screening and licensing sections to be the difficult ones. In practice those are the best-evidenced parts of most security businesses, because they have to be. The sections that catch people out are the management ones: how you monitor your own performance, how you act on what you find, and how you demonstrate improvement over time.

Those require records of decisions rather than records of facts, and most contractors have far fewer of them. A file showing that complaints were received is normal; one showing what changed as a result is rarer and is what distinguishes an approved contractor from a compliant one.

It is a continuing obligation, not a certificate

Approval is maintained rather than achieved. Contractors who obtain it through a concentrated push and then let records lapse find reassessment considerably harder than the original application, because the scheme is looking for continuous management rather than a point-in-time state.

The contractors who find it straightforward are the ones whose records are maintained anyway — which is the same population that finds a client audit or an insurance claim straightforward, for the same reason.

In practice: the mock assessment that found the filing

A contractor with around eighty officers runs a mock assessment against the current standard before applying. Nothing in the operation is wrong. What the exercise finds is that assembling evidence for any given requirement takes between ten minutes and two days, depending which one, because it lives across a rota system, a shared drive, three inboxes and a filing cabinet at one site.

The work that followed was consolidation rather than change. The contractor's own view afterwards was that the filing improvement was worth more than the approval, which is a common reaction and slightly misses the point — the approval is what let them bid.

Common mistakes

  • Treating it as a paperwork exercise separate from day-to-day compliance
  • Starting the evidence work close to the assessment date
  • Expecting the screening sections to be hardest, when management ones usually are
  • Obtaining approval and letting records lapse until reassessment
  • No single owner, so evidence stays distributed across departments
  • Not checking which target contracts actually require it before committing

One practical test: time three evidence requests

Pick three requirements from the current standard and time how long it takes to assemble the evidence for each. Not whether you do the thing — whether you can show it, today, without warning.

Contractors approaching approval almost always find the operation is fine and the evidence is scattered across a rota system, a shared drive and several inboxes. That retrieval time is the real finding, and it is the same work that makes a client audit or an insurance claim straightforward.

  • Run a mock assessment months ahead, timing retrieval
  • Expect the management sections to be harder than the screening ones
  • Give it a single owner
  • Maintain records continuously rather than per assessment
  • Confirm the current standard with the SIA — it is revised

Worth adding: check which contracts actually require it

Approval is worth pursuing for commercial reasons, and those reasons are specific rather than general. Before committing, establish which of the contracts you actually bid for specify it, and which are likely to within the next couple of years.

For some contractors the answer makes it urgent and for others it does not, and the difference is worth knowing before the effort starts rather than after.

Key takeaways

  • Voluntary in law, and close to mandatory for a growing share of the market.
  • It assesses the business, not the officers — licensing is assumed.
  • The management sections catch people out, not the screening ones.
  • It needs records of decisions, not just records of facts.
  • Confirm the current requirements with the SIA — the standard is revised.

The SecureOptix team

Written by people who work daily with security contractors on SIA licensing, screening and the records that hold up under an inspection.