Any individual offering timeshare units or timeshare interest reservations for the individual's own account or for the account of others shall be registered as a timeshare salesperson unless the timeshare offering is exempt from registration under RCW 64.36.020. Registration may be obtained by filing an application with the department of licensing on a form prescribed by the director. The director may require that the applicant demonstrate sufficient knowledge of the timeshare industry and this chapter. A timeshare salesperson who is licensed as a real estate broker or salesperson under chapter 18.85 RCW is exempt from the registration requirement of this section.