The Contractors Health and Safety Assessment Scheme

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A high percentage of new business is generated through successful tenders. Over the years the number of lead contractors that make CHAS registration a prerequisite in the tendering stage has risen substantially. One of our biggest customers accepts CHAS as an alternative to having to go through their own health and safety questionnaires. This allows us to streamline our tendering process to maximise the number of projects we can work on.

Greens Decorating Contractors Ltd, 2015.

With my company being small, the assessment works well for me, but also keeps me up to date with all my H&S. Without using CHAS so of these things could get forgotten about, so would cost my company in contracts in the future.

T Brown Joiners, 2014.

Joining CHAS really made us consider out H&S procedures in more detail and having to document them all instantly makes them easier to maintain and renew.

Ecological Land Management Ltd, 2014.

I would just like to thank you for your help and expertise throughout this whole process. My experience with CHAS was great from start to finish.

Autism Hampshire, 2014.

The accreditation process itself is a great way of monitoring the H&S within your own company, so by itself forces training in areas you may not be familiar with, so money well spent.

Probe Lockers, 2014.

CHAS is a great service which has helped my company become better and which has resulted in us winning more contracts of work. I have also recommended CHAS to other companies I work alongside who have now also become CHAS accredited.

MA Brickworks Ltd, 2014.

We first achieved our CHAS accreditation in 1998 and have found it very useful as a means of demonstrating that we comply with current health & safety law in the construction industry. CHAS is recognised across the whole of our industry so it reduces the amount of time and resources needed to pre-qualify for projects.

Concrete Repairs, 2014.

Important information regarding changes to the duties under the CDM Regulations

As you will be aware the CDM 2007 regulations were superseded by the CDM 2015 Regulations on the 06 April 2015.

Under the new Regulations the CDM-Coordinator role will disappear when the transitional arrangements end on 6 October 2015 and a new role of Principal Designer came into existence on 06 April 2015.

CHAS will no longer be offering a CDM-Coordinator assessment.
CHAS will be assessing the new role of Principal Designer.

The new CHAS Principal Designer assessment criteria and question set has been finalised and is available for download through the "Forms & Standards" page of the website.

A company will be able to apply as a Principal Designer when their next assessment is due or can apply earlier if they wish.

Note: There will be no change to other assessments offered by CHAS.

Grace period under the Regulations:
If you are already employed as a CDM-Coordinator on a project BEFORE 06 April 2015, you will be able to continue in this role until 06 October 2015.

There is no plan currently to remove historic CDM-C records from our database.

Please click on the web link for detail of industry guidance issued by HSE's Construction Industry Advisory Committee (CONIAC).

Please click here for further information on the changes involved in CDM 2015.

Need help with your CHAS registration?

All of our assessors are friendly, qualified, competent Health & Safety officers who are committed to improving Health & Safety, and pride themselves in guiding companies in the right direction. Find out more or apply now

The fastest growing Health and Safety assessment scheme in the UK

With 720 buyer members and over 62,000 suppliers on its database, CHAS is not only the largest but also the fastest growing health and safety assessment scheme in the UK.
Read more

Engineers shaking hands

About CHAS

CHAS is established as the market leader for health and safety pre-qualification in the UK. It is available to suppliers (those who provide goods and services) and to organisations (buyers) looking for suitably competent suppliers.

CHAS is a founder member and past Chair of Safety Schemes in Procurement – Competence Forum or SSIP. Please go to or click here for full details.

Roofers at work


CHAS isn’t just for construction companies, it assesses health and safety for all types of suppliers, from care services to demolition contractors, designers and consultants. The aim of the scheme is to save time and resources by avoiding unnecessary duplication in the first stage of competence assessment; the CDM Core criteria.

Developer and foreman


Membership includes the public sectors: health trusts, emergency services and government departments and large private companies who have a supply chain, for example Royal Mail Group, Kier and Mitie Group. Ultimately we complete the initial H&S application process for buyers, saving time and resources for all involved in the process.

If you think you may be eligible please complete the request for buyer access form. A member of the CHAS team will make contact within three working days.

Upcoming Events

CHAS will be exhibiting/attending the following events. Please do visit our stand and meet some of the team

October 2015

Procurex Scotland
SEC Centre, Glasgow - 6th

The Build Show
NEC Birmingham – 6th-8th

Build Show

Health & Safety North
Bolton Arena – 7th-8th

Health and Safety Events

We Mean Business Expo 2015
Fairfield Halls, Croydon - 14th

ECA South East Regional Conference
Yew Lodge Country House, West Sussex - 14th

November 2015

Local Government Procurement Expo
London Olympia - 18th

HOMES 2015
London Olympia - 18th-19th

December 2015

Architex 2015
St. George's Hall, Liverpool - 1st-2nd