What Does CHAS Registration Do For You?


This is intended to be an overview of CHAS and what it can do for you. By it’s very nature – and I’m sorry – it isn’t going to be a bodice ripping read and worse it's full of acronyms – but it is core to the industry that we inhabit and I hope it answers any questions you may have.


When an organisation wants to purchase in construction they become a Client with a capital “C”.  Part of the responsibility of being a Client is the assessment of the health and safety of any contractors they appoint.

For construction work Clients have legal duties to carry out health and safety competence assessments of contractors, designers and CDM co-ordinators (who must be appointed for larger projects). The Health and Safety Executive (HSE) have set out how these assessments should be carried out in the core guidance on competence and training in the Approved Code of Practice (ACoP) of the Construction (Design and Management) Regulations 2007. There are numerous companies and other organisations that operate pre-qualification schemes that can help Clients to carry out the first stage of a competence assessment.

Clients can assure themselves that suppliers, including Ec0-1, who have been assessed and accredited by CHAS have achieved the initial threshold of competence to provide specific services.

Clients should note that using these schemes will not absolve them of any liability and that SSIP Forum accreditation fulfils only the first stage of any assessment of competence.

CHAS registration allows Clients to concentrate on Stage 2 of the procurement process. The Stage 2 assessment will ensure that suppliers have and maintain: appropriate experience to carry out specific work in specific locations; suitably trained staff, and; other resources all available to do the work to meet the Client's needs.

What About All The Other Schemes?

There are many other schemes apart from CHAS that Clients can use or indeed they can simply use their own. 27 of the schemes have joined an umbrella organisation called SSIP (Saftey Schemes in Procurement) and rather sensibly they have produced a protocol showing wher e the various schemes have equivalence. The list is here.ssip equivalences.pdf

CHAS Background

In 1997 a group from across the UK  worked with the Association of London Government (ALG) to develop CHAS. In 2001 CHAS became a web-based system.

CHAS started with two main aims.

To improve health and safety standards across Great Britain.

To reduce duplicated safety applications for both suppliers and buyers.

Today they have more than 400 public and private sector buyer organisations, such as councils, housing associations, NHS trusts and a number of private companies who employ sub-contractors.

CHAS and Constructionline

Constructionline is the Government's national register for suppliers. In the same way CHAS offers a tool for use in the health and safety element of pre-qualification, Constructionline provide the pre-qualification tool for use in financial standing, technical references and other areas. The CHAS management group supports the principles of a single register and so works jointly with Constructionline.

Following agreement by the then Department of Trade and Industry, CHAS and Constructionline formed a "mutual working agreement". This describes how we will work together to provide an improved service for buyers. You can get details of that agreement by contacting us.

Both CHAS and Constructionline have their own independence and identity but the schemes are linked.


There are considerable benefits derived to Clients who choose to use the CHAS scheme.