A Pre-Qualification Questionnaire (PQQ) is a questionnaire completed by companies that wish to be considered for a procurement activity or event. The purpose is to assess the company’s general suitability in terms of financial and economic standing, technical capability, experience, quality assurance, health and safety procedures, environmental issues, and equalities considerations. A prequalification questionnaire is sometimes referred to as a business questionnaire.

Source: thh.nhs.uk