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Last edited 24 Aug 2022
CAS answers an expensive problem for industry
The proliferation of these question sets over the years has created major problems for suppliers and, it turns out buyers, due to the unnecessary cost and effort of filling-in multiple questionnaires. In addition, chasing assessment forms and certification badges has detracted from the real business of ensuring and delivering supply chain capability.
The construction industry has long sought to put an end to this problem with a commonly recognised set of pre-qualification questions (PQQ), and at the beginning of April 2021, Build UK and CECA, supported by ECA and others, issued a new pre-qualification ‘Common Assessment Standard’ (CAS), paving the way for a much-needed solution.
The Common Assessment Standard is a step towards the aims of the Construction Leadership Council and the current Sector Deal, both of which highlight the need to remove the burden and inefficiencies of excessive pre-qualification. Indeed, it has long been a goal in the industry to achieve “one assessment scheme, many providers” and the CAS moves us a lot closer to that goal.
The CAS builds on BSI’s widely-adopted ‘PAS 91’ construction pre-qualification document, and it allows enquires about topics that include company and financial matters, HS&E, quality, equality and corporate social responsibility (CSR). As such, it covers the general questions that buyers reasonably need to ask suppliers through either a ‘desktop’ assessment or, if necessary, an assessment visit to the supplier’s offices. The CAS does not include project- or task-specific enquires which, in any case, are best covered by further, bespoke dialogue between buyers and suppliers.
The new CAS will not change the prequalification landscape overnight, but it offers the prospect of significant business benefits to clients, main contractors and suppliers alike. Initially, it will be delivered by three leading assessment schemes (CHAS, Constructionline and Achilles) but the eventual aim is that other bodies which meet the necessary assessor criteria will also be able to offer CAS assessments.
An important next stage, set for this summer, will be the introduction of ‘supplier data sharing’ between the CAS assessors, which should boost take-up by main contractors and help to give suppliers confidence in the CAS. While widespread adoption of the CAS by commercial and public-sector buyers will be vital to success, the many thousands of suppliers across construction and maintenance – the paying customers for most pre-qualification questions – will need a CAS-based assessment regime they can get behind. Additionally, support from government and the relevant enforcement agencies would help to consolidate the CAS throughout the industry.
 About this article
- Appointing consultants.
- Articles by the Electrical Contractors' Association (ECA).
- Bid writer.
- Construction contract.
- Expression of interest.
- Invitation to tender.
- Mid tender interview.
- PAS 91.
- Pre-qualification standard 2021.
- Pre tender interview.
- Procurement route.
- Selection criteria.
- Small and medium-sized enterprises.
- Tender documentation.
- Tender evaluation.
- Tender processes.
- The benefits of e-procurement in construction.
 External references
- OGC Pre-Qualification Questionnaire for selecting suppliers.
- OGC PQQ.
- Construction Line.
- OGC Supplier Selection and Pre-Qualification: Guidance, tools and tips.
- OGC Pre-Qualification Questionnaire.
- Pre-qualification - PAS 91: the use of this standardised wording for PQQ's has been mandated within Government.
- PACE Guidance on the Appointment of Constractors and Consultants P480 Pre Selection Procedures.
- Construction Line.
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