The rollout of the Common Assessment Standard (CAS) aims to significantly reduce the duplication of time, effort and resources experienced by suppliers during prequalification.
A growing list of major contractors and clients ‐ including Balfour Beatty, Costain, HS2 JV, Mace, Multiplex and Skanska ‐ is adopting the Common Assessment Standard. These main contractors will specify the CAS for their supply chain, and the supply chain should only need to obtain one CAS certification to tender for work with a buyer who has adopted the CAS. Over time, the CAS may also make more inroads into the commercial and public sector.
The Common Assessment Standard is an industry‐agreed question set with two levels of certification ‐ desktop and site‐based. Assessment is delivered by any one of three Recognised Assessment Bodies. For companies that employ fewer than 10 employees and have a turnover below £1.8 million or a balance sheet total less than £1.8 million, the assessment questions are applied in a proportionate way.
The Common Assessment Standard Question Set can be viewed here >
ECA's Common Assessment Standard Manual was last updated in July 2024 and will be reviewed in 2025.
Recognised Assessment Bodies and CAS schemes
Common Assessment Standard | Achilles | CHAS** | Constructionline | CQMS |
---|---|---|---|---|
Desktop | BuildingConfidence Gold Desktop Audit | CHAS Elite (CAS) | Constructionline Gold | Safety Scheme Premium |
Site-Based | BuildingConfidence Gold 1 Day Audit | CHAS Elite (CAS) Assured | Constructionline Platinum | Safety Scheme Elite |
**ECA members’ special deal (CHAS only): free ‘first time SSIP’ component of a CAS assessment plus 27% discount on the remainder, and an ongoing 27% discount on CAS assessment. 15% off site-based CAS audit. Terms and Conditions apply. View the full offer here >
It is vitally important that Member’s consider the specific assessment requirements of their buyer/client base before selecting a particular CAS assessment body, noting that many buyers/clients are still not signed up to the CAS.
Data sharing
Data sharing enables contractors and clients to obtain key PQ data on their suppliers from any Recognised Assessment Body, regardless of which one carried out the certification to the Common Assessment Standard. This means that those buyers who have adopted the CAS should no longer need to specify a particular assessment body for their supply chain. The data is updated in ‘real time’, and it will be shown where a company’s certification has lapsed if they have not provided updated information. Data is shared only where a company has provided their consent.
Please see the following Build UK note on data sharing >