By way of derogation from Article 46, the following shall also be recognised as complying with Article 21: training as part of social betterment schemes or part-time university studies which satisfies the requirements set out in Article 46(2), as attested by an examination in architecture passed by a professional who has been working for seven years or more in the field of architecture under the supervision of an architect or architectural bureau. The examination must be of university level and be equivalent to the final examination referred to in point (b) of Article 46(1).