§  8706.  Limited permits. Permits limited as to eligibility, practice  and duration shall be issued by the department to  eligible  applicants,  as follows: 1.  Eligibility. The following persons shall be eligible for a limited  permit: (a) a person  who  fulfills  all  requirements  for  a  license  as  a  professional  medical  physicist except those relating to examination or  experience; or (b) a medical physics student enrolled in a graduate or  post-graduate  curriculum approved by the department; 2.  Limit  of  practice.  A  permittee shall be authorized to practice  medical physics only under the direct and  immediate  supervision  of  a  professional  medical  physicist  and  only  in  the  specialty  of such  professional medical physicist; 3. Duration. A limited permit shall be valid for two years. It may  be  renewed biennially at the discretion of the department; 4.  Fee. The fee for each limited permit and for each renewal shall be  sixty dollars.