The assessment situation for the certification of transversal transferable units 1 (UC 1) and 2 (UC 2) is carried out by means of the production of a personal written document and an interview as provided for in 1° of article D. 212-28. In accordance with the conditions laid down by the regional director of youth, sport and social cohesion or by the director of youth, sport and social cohesion, the candidate sends the director or the training body a personal written document explaining the design, implementation and realisation of an activity project in the sandwich course structure. This document forms the basis for the interview, which is used to verify the acquisition of skills. The interview lasts a maximum of 40 minutes and includes an oral presentation by the candidate lasting a maximum of twenty minutes.