Section 321M.10 - Supervisory authority of department1. The department shall retain all supervisory authority over the county driver's license issuance program. The county treasurers and their employees shall be considered agents of the department when performing driver's licensing functions.2. Approximately one supervisor shall be assigned from the department to every six issuance sites participating in county issuance.3. Approximately one technical computer support employee shall be assigned from the department to every twenty-four counties participating in county issuance.4. The department shall provide issuing counties access to computer databases at a level equal to that provided to comparable department employees.5. The department may adopt rules pursuant to chapter 17A as necessary to administer this chapter. The department may also develop operating standards as necessary to administer this chapter. The department shall consult with the Iowa county treasurers association in developing operating standards and proposed rules.