A traveller, sales representative or sales representative is any person who:
1° Works for one or more employers;
2° Is in fact exclusively and constantly engaged in the profession of representative;
3° Does not carry out any commercial transactions on his own behalf;
4° Is bound to the employer by undertakings determining :
a) The nature of the services or goods offered for sale or purchase;
b) The region in which he carries out his activity or the categories of customers he is responsible for visiting;
c) The rate of remuneration.