1. The professional license issued to every professional land surveyor in Missouri, including certificates of authority issued to corporations as provided in section 327.401, shall be renewed on or before the license or certificate renewal date provided that the required fee is paid. The license of any professional land surveyor or the certificate of authority of any such corporation which is not renewed by the renewal date shall expire on the renewal date and be void and the holder of such expired license or certificate shall have no rights or privileges thereunder, but any person or corporation whose license or certificate has expired may, within three months of the certificate renewal date or at the discretion of the board and upon payment of the required fee, be renewed, reregistered, or relicensed under such person’s or corporation’s original license number.

2. Each application for the renewal of a license or of a certificate of authority 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 land surveyor over the age of seventy-five.

3. As a condition for renewal of a license issued pursuant to section 327.314, a license holder shall be required to successfully complete twenty units of professional development that meet the standards established by the board regulations within the preceding two calendar years. Any license holder who completes more than twenty units of professional development within the preceding two calendar years may have the excess, not to exceed ten units, applied to the requirement for the next two-year period.

4. The board shall not renew the license of any license holder who has failed to complete the professional development requirements pursuant to subsection 3 of this section, unless such license holder can show good cause why he or she was unable to comply with such requirements. If the board determines that good cause was shown, the board shall permit the license holder to make up all outstanding required units of professional development.

5. A license holder may at any time prior to the termination of his or her license request to be classified as inactive. Inactive licenses may be maintained by payment of an annual fee determined by the board. Holders of inactive licenses shall not be required to complete professional development as required in subsection 3 of this section. Holders of inactive licenses shall not practice as professional land surveyors within this state, but may continue to use the title “professional land surveyor” or the initials “PLS” after such person’s name. If the board determines that good cause was shown, the board shall permit the professional land surveyor to make up all outstanding required units of professional development.

6. If a licensee is granted inactive status, the licensee may return to active status by notifying the board in advance of such intention by paying appropriate fees as determined by the board, and by meeting all established requirements of the board including the demonstration of current knowledge, competency, and skill in the practice of land surveying as a condition of reactivation.

7. In the event an inactive licensee does not maintain a current license in any state for a five-year period immediately prior to requesting reactivation, that person may be required to take such examination as the board deems necessary to determine such person’s qualifications. Such examination shall cover areas designed to demonstrate the applicant’s proficiency in current methods of land surveying practice.

8. Exemption to the required professional development units shall be granted to licensees during periods of serving honorably on full-time active duty in the military service.

9. At the time of application for license renewal, each licensee shall report, on a form provided by the board, the professional development activities undertaken during the preceding renewal period to satisfy the requirements pursuant to subsection 3 of this section. The licensee shall maintain a file in which records of activities are kept, including dates, subjects, duration of program, and any other appropriate documentation, for a period of four years after the program date.