Rule 4. Subject to section 2472 of the code, the commissioner may issue reasonable guidelines and procedures relating to the collection and reporting of data for purposes of evaluating rates and classifications or the extent and nature of competition. The guidelines and procedures shall provide for the option of using reasonable sampling techniques, when practicable, provided that any data thereby obtained are reportable in a uniform and consistent manner as may be required.
Mich. Admin. Code R. 500.1204