No licensee of chiropractic in the State of California shall offer or cause to be offered to a student or prospective student of chiropractic any promise or inducement, either written or verbal, which may induce said student or prospective student to believe he or she, during the freshman, sophomore, junior or senior years, or within the time that he or she shall be a student in, and/or before graduation from chiropractic school or college, and/or before receiving a license from the board, may be legally employed in any chiropractic private office, or chiropractic school or college, to practice chiropractic, with or without compensation, and no student shall accept or rely upon any such promise or understanding except that junior or senior students only may, for professional instruction, be assigned to regular clinic practice, during regular clinic hours, in the clinic conducted upon the premises of a regularly incorporated chiropractic school or college, and then only when said clinic is in charge of a duly licensed chiropractor as clinic instructor. This section does not apply to students and doctors who participate in preceptorship programs sponsored by chiropractic institutions holding status with the Council on Chiropractic Education or seeking such status. Violation of this rule by any student shall be deemed to be also a violation of Section 312 hereof.