1. The professional license issued to every professional landscape architect in Missouri, and certificates of authority issued to corporations under section 327.401, shall be renewed on or before the license renewal date, provided that the required fee is paid. The board may establish, by rule, continuing education requirements as a condition to renewing the license of a professional landscape architect, provided that the board shall not require more than thirty such hours. The license of a professional landscape architect or the certificate of authority issued to any corporation which is not renewed by the renewal date shall expire on the renewal date and be void and the holder thereof shall have no rights or privileges thereunder; provided, however, any person or corporation whose license has expired under this section may within three months of the certificate renewal date or at the discretion of the board, upon payment of the fee, be renewed, relicensed, or reauthorized under such person’s or such corporation’s original license number.

2. Each application for the renewal of a license shall be on a form furnished to the applicant and shall be accompanied by the required fee, but no renewal fee need be paid by any professional landscape architect over the age of seventy-five.