The minimum and “must” qualifications of a trainee to a training program that will ensure effective and efficient training.
Source: TESDA 2010, Philippines

The minimum academic knowledge and/or practical competencies, and/or work experience that a learner must have completed in order to be admitted for study towards a qualification or part qualification; this may include recognition of other forms of prior learning such as non-formal and informal learning and work experience deemed as comparable for entry.
Source: SAQA 2013, South Africa

The awareness, knowledge, skills and experience required for entry to a qualification or training programme. (Similar definition used by Queensland government)
Source: Wahba 2013, Global

The minimum qualification required for employment in a particular occupation.
Source: NCVER 2013, Australia