What is PAS 91?
PAS 91 is a standardised pre-qualification questionnaire (PQQ) developed by the British Standards Institution (BSI) for the construction industry. For many years, it was the recognised standard for assessing contractors during the procurement process.
Today, the Common Assessment Standard (CAS) has become the industry standard for construction pre-qualification, building on the foundations of PAS 91 with a broader assessment across 13 areas of risk management. However, PAS 91 remains recognised by some buyers and clients and may still be requested as part of the tendering process.







