In addition they have all been awarded the Regency Certificate which means that their qualifications have been verified and their homes have been thoroughly inspected by the local organizer.Professors are either:
- Teaching professionals who receive students during their vacations.
- Retired teachers who appreciate receiving students because it provides them with the opportunity of meeting people from different cultures.
- Housewives who have stopped teaching full-time
- Professionals, freelancers or not, awarded a diploma of higher education (whatever is their speciality) and trained to a teaching method of education for individuals.
A local correspondent is present on location to ensure that all goes well.