Control of Asbestos Regulations 2012: Duty to Manage, Regulation 4 Obligations and Who Is Responsible

Summary

The Control of Asbestos Regulations 2012 came into force on 6 April 2012, replacing and consolidating the earlier Control of Asbestos Regulations 2006. The regulations implement the requirements of European Council Directive 2009/148/EC and are the definitive legal framework for managing asbestos in Great Britain. They apply to virtually all work with asbestos-containing materials (ACMs), from full licensed removal through to minor disturbance during general maintenance.

At the heart of the regulations sits the duty to manage, established by Regulation 4. This duty falls on the "dutyholder" — typically the owner or managing agent of a non-domestic building — and requires proactive management of asbestos rather than simply reacting when it is found. For tradespeople working in commercial, industrial, educational, or healthcare premises, understanding who holds this duty, what information they should have compiled, and what it means for site access and safe working is essential to staying legal and safe.

The regulations also draw a critical distinction between licensed work, notifiable non-licensed work (NNLW), and non-notifiable non-licensed work. Where work falls determines the level of health surveillance, training, notification, and controls required. Getting this categorisation wrong is one of the most common compliance failures in the trade, with consequences ranging from improvement notices to prosecution.

Key Facts

• Came into force — 6 April 2012, replacing CAR 2006
• Implementing directive — Council Directive 2009/148/EC on the protection of workers from the risks related to exposure to asbestos at work
• Enforced by — Health and Safety Executive (HSE) in most workplaces; Local Authority Environmental Health in some retail and office settings
• Dutyholder (Reg 4) — the person who has contractual or legal responsibility for maintenance or repair of non-domestic premises, or the owner where no such contract exists
• Domestic premises — Regulation 4 does NOT apply to private dwellings, but all other regulations in CAR 2012 still apply to work carried out there
• Control limit — 0.1 fibres per cubic centimetre (f/cm³) of air, averaged over any continuous 4-hour period (short-term: 0.6 f/cm³ over any 10-minute period)
• Prohibition — all forms of crocidolite (blue) and amosite (brown) asbestos are prohibited from import, supply, and use; chrysotile (white) also prohibited since 1999
• Licensed work — sporadic and low-intensity work with chrysotile in ceiling tiles AND all work with amphibole asbestos requires a licence [verify for specific exemptions]
• NNLW threshold — work is notifiable non-licensed where it is not licensable but exposure is likely to exceed the Control Limit or involves certain defined materials
• Notification period for NNLW — must be notified to the relevant enforcing authority (HSE or LA) at least 14 days before work commences
• Health surveillance — required for all NNLW and licensed work; medical examination every 3 years minimum, plus initial pre-employment exam
• Training — Regulation 10 requires adequate training; the HSE recommends UKATA or IATP-accredited courses for awareness, non-licensed, and licensed categories
• Asbestos awareness training — required for anyone whose work could disturb asbestos (Regulation 10(1)); typically a half-day course
• Maximum penalty — unlimited fine and/or up to 2 years' imprisonment on indictment

Quick Reference Table

Detailed Guidance

Regulation 4: The Duty to Manage

Regulation 4 is the cornerstone of CAR 2012 and applies exclusively to non-domestic premises. It places a legal duty on the "dutyholder" — defined as anyone who has a contract, tenancy, or other agreement that gives them responsibility for maintenance and repair of the premises, or the owner where no such agreement exists.

The duty requires the dutyholder to:

1. Take reasonable steps to determine the location and condition of ACMs that could be disturbed during building work
2. Presume that materials contain asbestos unless there is strong evidence to the contrary
3. Assess the risk of those materials being disturbed
4. Prepare a written plan to manage that risk
5. Implement that plan and review and monitor it regularly
6. Provide information about the location and condition of ACMs to anyone who is liable to disturb them

For tradespeople, this last point is critical. Before you start any maintenance, refurbishment, or repair work on a non-domestic property, the dutyholder is legally obliged to make their asbestos management plan available to you. In practice, this means asking to see the asbestos register before any survey, drilling, cutting, or disturbance work begins. If the dutyholder cannot produce one, treat all materials as potentially containing asbestos until proven otherwise.

Scope: What Premises Are Covered

CAR 2012 Regulation 4 applies to all non-domestic premises: offices, factories, warehouses, schools, hospitals, churches, shops, hotels, leisure centres, and similar buildings. It also applies to the common parts of domestic premises — staircases, lift shafts, plant rooms, and roof spaces in blocks of flats are covered even though individual flats are not.

The domestic exception does not remove the obligation to work safely in private homes. The rest of CAR 2012 — including requirements for correct methods, appropriate training, suitable RPE, and correct disposal — applies in full to any asbestos work in a residential property. Domestic exemption from Regulation 4 simply means there is no formal duty on the homeowner to have an asbestos management plan.

The Three Work Categories Explained

CAR 2012 categorises asbestos work into three tiers, and correctly identifying which tier applies is a legal obligation, not optional guidance.

Non-notifiable non-licensed work (NNNLW) covers short-duration, low-risk tasks where asbestos is not friable, the material is in good condition, and exposure is unlikely to exceed the control limit. Examples include drilling a single fixing into a non-friable asbestos cement sheet, or brief contact with intact floor tiles. While a licence is not required and notification is not mandatory, employers must still provide suitable training, appropriate RPE, and maintain records of exposure in a health record for 40 years.

Notifiable non-licensed work (NNLW) applies when the work is not licensable but one or more of the following apply: it is reasonably foreseeable that the control limit will be exceeded; the material is asbestos insulating board (AIB) [verify current exemptions]; or it involves certain floor tiles or textured coatings in conditions that increase fibre release. NNLW must be notified to the enforcing authority at least 14 days in advance, health surveillance under a doctor appointed under Schedule 6 is mandatory, and exposure records must be retained for 40 years.

Licensed work is required for all work with asbestos insulation, asbestos coating, and AIB (unless sporadic and low-intensity). It also applies to work where exposure cannot be reduced to below the control limit. Only companies holding a current HSE asbestos licence may carry out licensed work.

Employer Obligations Beyond the Dutyholder

Employers carrying out asbestos work — including sole traders acting as their own employer — have specific duties under Regulations 5 through 21. These include: identifying the presence and type of asbestos before work starts (Reg 5); preparing a suitable written plan of work (Reg 7); designating supervised areas and preventing unauthorised access (Reg 18); using appropriate RPE that meets relevant EN standards and is correctly fitted (Reg 14); ensuring adequate washing and changing facilities (Reg 21); and ensuring waste is segregated, labelled, and disposed of via an authorised waste carrier under the Environmental Protection Act 1990.

Key Dates and Historical Context

Prior to CAR 2012, asbestos work in the UK was regulated under CAR 2006. The 2012 revision brought the UK's implementation of the European directive up to date and clarified the boundary between notifiable and non-notifiable work, which had caused significant enforcement ambiguity. The prohibition on all forms of asbestos import, supply, and use has been in place since 1999. However, materials installed before 2000 — and sometimes later, from stored stock — remain in millions of UK buildings, making the management obligations of CAR 2012 as relevant today as when the regulations came into force.

Frequently Asked Questions

Does the duty to manage apply to domestic properties?

No. Regulation 4's duty to manage applies specifically to non-domestic premises and the common parts of multi-occupancy residential buildings. However, all other parts of CAR 2012 apply to work carried out in domestic properties. A plumber or electrician working in a private house must still follow correct procedures if they encounter or disturb ACMs — they are simply not entitled to demand an asbestos register from the homeowner, as no such legal obligation exists.

Who is the dutyholder if a building has multiple tenants?

It depends on the lease agreements. Typically the freeholder or managing agent holds the duty for shared and common areas, while each tenant may hold the duty for their own demised space. In mixed-ownership situations, a premises may have multiple dutyholders for different areas. Where this is unclear, all parties should seek legal advice, and in practice the HSE will look to whoever has the most control over the overall building. Tradespeople working across multiple tenancies should ask each relevant party for their portion of the asbestos register before starting work.

What happens if I disturb asbestos without knowing it was there?

If you genuinely did not know, stop work immediately, isolate the area, and do not re-enter without appropriate RPE. Notify your employer, who should notify the HSE under RIDDOR if a reportable quantity of asbestos has been disturbed. Seek medical advice. For future work, you should have checked the asbestos register before starting — if the dutyholder could not provide one, you should have made reasonable enquiries about the likelihood of asbestos being present, particularly in buildings built or refurbished before 2000. Ignorance is a partial mitigation but not a defence to a charge of failing to take suitable precautions.

Are there any exemptions for emergency work?

Regulation 7(4) allows the requirement to notify 14 days in advance to be waived for emergency work, but only where it is not reasonably practicable to comply. The work must still be notified as soon as practicable, and all other precautions — RPE, containment, decontamination — must still be followed. Emergency is not a blanket exemption from safe working practices.

How long must exposure records be kept?

Forty years from the date of the last entry, or until the worker would reach 50 years of age, whichever is the later. This applies to both NNLW and licensed work. The long retention period reflects the latency period for mesothelioma, which can be 20–50 years after exposure.

Regulations & Standards

• Control of Asbestos Regulations 2012 (SI 2012/632) — primary UK legislation; came into force 6 April 2012

• Council Directive 2009/148/EC — European directive on worker protection from asbestos exposure, implemented by CAR 2012

• Health and Safety at Work etc. Act 1974 — overarching framework under which HSE enforces CAR 2012

• Environmental Protection Act 1990 — governs disposal of asbestos waste; asbestos is hazardous waste

• Hazardous Waste Regulations 2005 (England & Wales) — asbestos waste classified as hazardous; requires consignment notes

• RIDDOR 2013 — Reporting of Injuries, Diseases and Dangerous Occurrences Regulations; mesothelioma and diffuse pleural thickening are reportable diseases in workers

• BS EN 689 — method for measuring personal exposure to airborne chemicals in the workplace [verify current edition]

• HSG264 — HSE guidance: Asbestos: The Survey Guide

• HSG248 — HSE guidance: Asbestos: The Analysts' Guide

• Control of Asbestos Regulations 2012 — full statutory text

• HSE: Asbestos — HSE's asbestos landing page with guidance documents

• HSE: Introduction to asbestos essentials — task-based guidance for non-licensed work

• HSE: The duty to manage asbestos — Regulation 4 guidance for dutyholders

• hse licensed removal asbestos — when a licence is required and how to apply

• asbestos survey types — management survey vs refurbishment/demolition survey

• asbestos containing materials acm — identifying ACMs in UK buildings

• asbestos management plan — what a management plan must include and how to access it