Understanding the asbestos risk
Despite the prohibition on the supply and use of asbestos-containing materials (ACMs) in Great Britain under the Asbestos (Prohibitions) (Amendment) Regulations 1999, asbestos remains present in an estimated 1.5 million commercial and non-domestic buildings constructed before the year 2000. The Health and Safety Executive (HSE) records that asbestos-related disease continues to cause around 5,000 deaths each year in the UK, making it the single greatest cause of work-related mortality. For duty holders, managing this legacy risk is not a historic or optional exercise — it is a live, statutory obligation underpinned by criminal sanction.
The legislative framework
The primary legislation governing asbestos in non-domestic premises is the Control of Asbestos Regulations 2012 (CAR 2012), which consolidated previous asbestos regulations into a single, coherent framework. CAR 2012 is itself made under the umbrella of the Health and Safety at Work etc. Act 1974 (HSWA 1974), meaning that breach of its provisions may be prosecuted as a criminal offence carrying unlimited fines and, in serious cases, custodial sentences for company officers under sections 7 and 37 of HSWA 1974.
The most critical duty under CAR 2012 is contained within Regulation 4 — the duty to manage asbestos in non-domestic premises. This regulation places an explicit duty on every person who, by virtue of a contract or tenancy, has any obligation in relation to the maintenance or repair of non-domestic premises, or any means of access or egress. The duty holder must take reasonable steps to determine whether ACMs are present, record their location and condition, assess the risk of exposure, and prepare a written Asbestos Management Plan (AMP) that is kept up to date and accessible to anyone liable to disturb the materials.
Supporting CAR 2012, the HSE has published a suite of Approved Codes of Practice and Guidance documents, including: L143 — Managing and working with asbestos; HSG 227 — A comprehensive guide to managing asbestos in premises; HSG 264 — Asbestos: The survey guide; and HSG 248 — Asbestos: The analysts' guide. Together these documents set the benchmark for competent practice and are routinely cited in enforcement notices and prosecutions.
Asbestos surveys — HSG 264
HSG 264 defines two principal survey types. A Management Survey is a non-intrusive inspection designed to locate, so far as reasonably practicable, the presence and extent of suspect ACMs in a building during normal occupation. It forms the evidential basis of the Asbestos Register and underpins day-to-day management decisions. A Refurbishment and Demolition (R&D) Survey is a fully intrusive inspection undertaken before any refurbishment or demolition works are carried out. The R&D Survey may be destructive, requiring access behind linings, above ceilings and into risers, voids and plant — and must leave the duty holder with sufficient evidence that no material presumed or confirmed to contain asbestos remains in the scope of the planned works.
Every OEC asbestos survey is delivered by a surveyor holding the BOHS P402 — Building Surveys and Bulk Sampling for Asbestos qualification, operating under a UKAS-accredited quality system. Findings are recorded with photographic evidence, GPS-tagged floor plans, material risk scores and priority risk ratings in accordance with the HSE algorithm (HSG 227 Appendix 2).
Sampling, analysis and air monitoring — HSG 248
Bulk samples are submitted to a UKAS-accredited laboratory for analysis under ISO/IEC 17025. Samples are prepared using polarised light microscopy (PLM) with dispersion staining to identify the three most common regulated fibres (Chrysotile, Amosite and Crocidolite) and, where necessary, the less common Actinolite, Tremolite and Anthophyllite.
Air monitoring is conducted to HSG 248 — The analysts' guide, with all site analysts holding the BOHS P403 — Asbestos Fibre Counting qualification and senior analysts additionally certified to P404 — Air sampling and clearance procedures. Four principal air-testing categories are recognised: background testing, leak testing, reassurance testing, and the four-stage clearance procedure that must be completed before any licensed removal enclosure is dismantled and the area re-occupied.
Licensed work and the client role
Work with higher-risk ACMs — including most insulation, insulating board and coatings — is classified as licensable work and may only be undertaken by contractors holding an HSE Asbestos Licence. Licensable work requires 14 days' prior notification to the enforcing authority, a written plan of work, medical surveillance of operatives, and full decontamination facilities on site.
OEC acts as the independent duty holder's representative throughout licensed removal projects — reviewing the plan of work against the scope of abatement, witnessing enclosure construction, supervising smoke and pressure testing, commissioning analytical clearance, and signing off the Certificate of Reoccupation only once the four-stage clearance procedure has been satisfied.
Outputs, records and the Golden Thread
Every asbestos engagement concludes with a set of outputs designed to survive changes of duty holder, tenancy and managing agent. These include: a formal Survey Report referencing HSG 264 methodology; a live Asbestos Register (locations, types, condition, priority score); an Asbestos Management Plan aligned to HSG 227; photographic evidence and risk-scored plans; and, where applicable, Consignment Notes, Waste Transfer Notes and Clearance Certificates.
In the era of the Building Safety Act 2022, this documented evidence also contributes to the "Golden Thread" of information for higher-risk buildings — an unbroken, digital record of building safety information that must be held and updated by the Principal Accountable Person across the lifecycle of the asset.
Why it matters
The financial, reputational and human cost of getting asbestos management wrong is significant. Prosecutions under CAR 2012 regularly result in six-figure fines, and — since the Sentencing Council Guidelines (2016) for health and safety offences — turnover-linked fines reaching into millions of pounds are now routinely imposed on larger organisations. More importantly, every well-managed asbestos programme reduces the long-term health burden carried by the maintenance trades, facilities teams and occupants who rely on duty holders getting this right.