July 7, 2015

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CDM Regulations 2015 – CPD Quiz


The new Construction (Design and Management) Regulations 2015 came into force on 6 April 2015, replacing the 2007 version.

The revision attempts to make the 2015 Regulations more accessible; the changes affect almost all construction projects in Great Britain and so all duty holders need to be aware of their new obligations.

This quiz is based on information that can be found in the Barbour suite of resources under the topic ‘CDM and Construction Site Safety ’.

By answering the questions below, practitioners can award themselves CPD credits. One, two or three credits can be awarded, depending on what has been learnt – exactly how many you award yourself is up to you, once you have reflected and taken part in the quiz.

Please note:  There may be more than one correct answer to a question, and further reading may be required to correctly answer the questions

1.The main changes associated with the introduction of the 2015 Regulations include which of the following:

Answer: D - all of the above

In 2014, the HSE consulted on the new Regulations, which aimed at simplifying the regulatory package and ensuring full compliance of the Regulations with the EC Temporary or Mobile Construction Sites Directive (TMCSD), including removal of the domestic client exemption and the alignment of the threshold for the appointment of co-ordinators, and for formalised health and safety plans with that in the Directive.  The above are some of the main changes outlined by the HSE, associated with the introduction of the 2015 Regulations.
2. A Principal Contractor and Principal Designer have to be appointed by a commercial client:

Answer: A. Where there is more than one contractor on the project (irrespective of whether the project is notifiable)

For all projects where there is more than one contractor a Principal Designer, who is responsible for ensuring the pre construction part of the project is adequately coordinated, assisting in preparing the pre construction information and ensuring that designers comply with their design duties and prepare the health and safety file, must be appointed along with a Principal Contractor to plan, manage and co-ordinate the work. You should involve them at an early stage of the project.

If you have construction or building work carried out, the client for the work (normally your company or organisation for which the work is being undertaken) will have legal duties under CDM. A domestic client having work done on their own home does not have the same legal duties under CDM as a commercial client – these are transferred to the contractor undertaking the work or in some cases to an appointed Principal Designer.
3. One of the very major changes to the CDM Regulations is that the 2015 Regulations will apply in full as soon as more than one contractor is involved irrespective of the scale or extent of the work.

True or False?

Answer: True

The objective of CDM is to provide a legal framework covering design, commissioning of work, and its planning and execution, which applies to all construction work likely to pose significant risks to workers and other parties. The underlying aim is to encourage information flow from the original conception, through the design and construction process, to the final users of the building - ultimately to minimise health and safety risks to all concerned.
4. The Approved Code of Practice (ACoP) associated with CDM remains in place and has been updated to apply to the 2015 revision.

True or false?

Answer: False

There is no longer an Approved Code of Practice (ACoP) – this has been replaced with the HSE guidance document L153 2015 “Managing Health and Safety in Construction”. The previous ACoP and guidance L144 has been withdrawn. A suite of sector specific guidance published by industry groups has also been produced.
5. For projects where a certain threshold of work is to take place, it will require notification to the HSE, the Office of Rail Regulation (for rail and tramway projects), or the Office of Nuclear Regulations (for nuclear and certain defence sites).

A project is notifiable if the construction phase will last longer than 40 days and have more than 20 persons working on it at any one time, and will involve more than 500 person days of construction work. True or false?

Answer: False

A project is notifiable if the construction phase is likely to involve more than 30 days of construction work to complete, and have more than 20 workers working simultaneously at any point in the project  or will involve more than 500 person days of construction work.

A project is not notifiable unless the above criteria are met. The responsibility for notification rests with the Client (other than a domestic client (i.e. private domestic householder undertaking work unrelated to a business on their own private dwelling or that of a family member) where the duty falls on the contractor undertaking the work).This should be 30 working days with 20 workers on site simultaneously at any point OR 500 person days
6. The key safety roles or duty-holders under CDM 2015 are the Client, the Principal Designer, any designers, the Principal Contractor and contractors. Each of the CDM duty-holders has specific tasks to perform at each stage of the project depending on the nature and scale of the project. Which of the following is not a key duty of the Client:

Answer: C - this is a duty of the contractor

Any person or organisation for which a construction project is carried out, regardless of the project being undertaken in-house or contracted out is known as the Client. ‘Clients’ include originators under PFI projects, school governors, local authorities, charities etc.

Clients must be businesses or ‘undertakings’ in order to have duties under CDM – Domestic clients do have duties under CDM but unless they direct the construction work these duties are transferred to the Contractor or, if there is more than one, the Principal Contractor. If a Principal Contractor is not appointed then the contractor in charge of the construction phase becomes the Principal Contractor. The designer in charge of the pre-construction phase becomes the Principal Designer. The Principal Designer can take on the Client duties instead of the contractor or Principal Contractor if there is a written agreement with the Client for the Principal Designer to do so.
7. For the purposes of CDM, the term ‘construction work’ includes building or civil engineering work but does not include which of the following:

Answer: B and C - Mineral extraction and exploration is also excluded

Other work falling under the term ‘construction work’ includes:

  • the assembly on site of prefabricated elements to form a structure or the disassembly on site of prefabricated elements which, immediately before such disassembly, formed a structure

  • the removal of a structure or of any product or waste resulting from demolition or dismantling of a structure or from disassembly of prefabricated elements which immediately before such disassembly formed such a structure

  • the installation, commissioning, maintenance, repair or removal of mechanical, electrical, gas, compressed air, hydraulic, telecommunications, computer or similar services which are normally fixed within or to a structure..

8. HSE will enforce construction work carried out at local authority enforced premises by persons who do not normally work at the premises if: the project is notifiable; all or part of the work is to the external fabric of the building/structure; or the work is carried out in a physically segregated area, normal activities having been suspended to enable the work to take place, etc (and the work is not maintenance of insulation on pipes, boilers, or other parts of heating/water systems etc). True or false?

Answer: True

HSE is also the enforcing authority for construction work carried out on “construction sites” (where the principal work activity is construction work), or which is carried out at HSE enforced premises.

The local authority will be the enforcing authority for construction work at premises where they are the enforcing authority, where construction work is carried out by persons who do not normally work at the premises, if:

  • the project is not notifiable

  • all of the work is internal.

9. Internal redecorating of an office or installing additional IT cabling falls within the definition of construction work and will require a construction phase plan.

True or false?

Answer: True

A construction phase plan is required for all projects involving construction work of whatever scale and even if there is only one contractor. The construction phase plan must record:

  • health and safety arrangements for the construction phase

  • site rules

  • where relevant, specific measures concerning work that falls within one or more of the categories listed in Schedule 3 of the Regulations. (Schedule 3 relates to higher risk construction work and includes matters such as there being a particular risk of falls from height, drowning, being trapped in excavations or the use of particularly toxic substances. Schedule 3 also lists other high risk work such as the use of explosives, working in compressed air etc).

The HSE indicate that the plan must record the arrangements for managing the significant health and safety risks associated with the construction phase of a project.
10. What is a new requirement for the Client under the 2015 Regulations?

Answer: A

One of the main client duties is to ensure that there are suitable arrangements for managing the project including the allocation of sufficient time and other resources and for ensuring the arrangements are maintained and reviewed throughout the project. However, under the 2015 CDM Regulations the Client has a legal duty to take reasonable steps to ensure that the Principal Designer and Principal Contractor comply with their duties. Reasonable steps will include monitoring the standards being maintained.

This new duty would make it easier for a prosecution to be brought against a Client for failures on behalf of Principal Contractors and Principal Designers if such monitoring is not demonstrably carried out.





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Free download: CDM Regulations Factsheet

Do you know the main CDM Regulations which highlight the health, safety and welfare of construction projects? This factsheet created in partnership with Southalls provides the  key stats, legislation and advice for health and safety practitioners, and who the key duty holders are on a construction site.

Click here to Download now

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Ray Rapp

Roz, cannot see a question…it might be due to my computer software being out of date.

Carrie Stewart

Hi Ray, you should see a ‘Next’ button that takes you into the quiz.

Nigel Daly

Please review your answer to the notification question. You need to include the requirement relating to more than 20 workers working simultaneously. Thanks.


A project is notifiable if the construction phase is likely to involve more than 30 days of construction work to complete and will involve more than 500 person days of construction work.

This should be 30 working days with 20 workers on site simultaneously at any point OR 500 person days

Cdm What Is Notifiable – Information

[…] CDM Regulations 2015 – CPD Quiz – This quiz is based on information that can be found in the Barbour suite of resources under the topic ‘CDM and Construction Site Safety … nuclear and certain defence sites). A project is notifiable if the construction phase will last longer … […]


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